Maria’s math test had 25 questions. She got 84% correct. How many problems did she get wrong

Answers

Answer 1
x divided by 25 is 84
Therefore, Maria got 21 correct out of the 25.

Do 25 - 21 (25 for the 25 questions and 21 for the ones she got correct)
25 - 21
=4

So, Maria got 4 problems wrong.
Answer 2
Maria got 84% correct, so she got 16% of the questions wrong. If you understand percentages, you'll know that you can multiply 0.16 and 25 to get 16% of 25, which is 4. So she got 4 problems wrong. If you don't understand this, you can use ratios. Set up a proportion to solve instead:

[tex] \frac{Number Wrong}{Total Problems} = \frac{Percentage of Questions Wrong}{Total Percentage of Questions} \\ \frac{x}{25} = \frac{16}{100} \\ x= \frac{16}{4} \\ x=4 [/tex]

So Maria got 4 questions wrong.

Related Questions

Find the value of x on this triangle

Answers

Look at the picture.

ΔABD and ΔBCD are similar, therefore:

[tex]\dfrac{y}{5}=\dfrac{11}{y}\ \ \ |\cross\ multiply\\\\y^2=55\to y=\sqrt{55}[/tex]

Use Pythagorean theorem:

[tex]x^2=5^2+(\sqrt{55})^2\\\\x^2=25+55\\\\x^2=80\to x=\sqrt{80}\\\\x=\sqrt{16\cdot5}\\\\x=\sqrt{16}\cdot\sqrt5\\\\\boxed{x=4\sqrt5}[/tex]

What is the square roots of 144/256?

-9/16 and 9/16

-12/16 and 12/16

-12/18 and 12/18

-72/128 and 72/128

Answers

To find the square root of something, you have to find the number that can multiply by itself to get the desired number.

So: 12 x 12= 144

So this means that the square root of 144 is 12.

Next: 16 x 16= 256

So 16 is the square root of 256.

The square root of any number (not negative) can easily be found by inserting that number into a calculator, then hitting the square root button.

Find the volume of this triangular prism. Dimensions are in inches

Answers

This prism is the half of rectangular prism, so first find the volume of rectangular prism then divide it by 2 and you'll get the volume of this triangular prism: (12x16x10)/2=960in^3
Volume=l×w×h

12×16=192 (l×w)

192×10=1,920in=volume

Please Help ASAP! Would be greatly appreciated.

Answers

Your answer would be G. You can do away with F and H immediately, because these line graphs show you no important information, and graph J shows 24/3, rather than 24/8, so it is incorrect also.
Hi,
The answer G represents -24/8 the best because it is dividing it into eight parts.
Hope this helps you.

talia has 2 red,1 blue and 4 green balls of the same size in the bag talia pulls one ball out of the bag without looking what is the probability that talia will pull a red ball out of the bag

Answers

There are 2 reds and the total amount of balls is 7
So the probability would be 2/7
(possible outcomes)/(total)

the answer is 2/7  there 2 red balls left and 7 balls all together so I am just saying the answer is 2/7  I just took the unit test

please give me the brainless thank you

Write and solve an inequality that represents the followinh: You want to read at least 12 books over the next 3 months. Let X represent the number of books read each month.

A. 3x>12;x>4
B.4x>12;x>3
C.3x>12;x<4
D.4x>12;x<3
(The signs are Greater than or equal to AND Less than or equal to signs but I couldn't put a line under them to signify that)

Answers

The answer would be A.

I have a formula of 10 ounces of powder to 1 gallon of water, I need to know how much powder to use to a pint.

Answers

the answer is 1.25 ounces

joel made some muffins. he gave 1/4 of the muffins to a neighbor. he took 3/8 of the muffins to school. what fraction of the muffins is left

Answers

The answer will be 3/32.How I got this answer is fraction is like doing multiplying and dividing so just do your time tables if you know them.Then you will get your answer.

Hopes This Helps :D
8/8 = Total
1/4 = 2/8 (Same denominators make it easier to subtract)
2/8 + 3/8 = 5/8 (5/8 is the amount given away)
8/8 - 5/8 = 3/8

Joel has 3/8 of the muffins left

Hope this helps!

He has

Can someone help me find the area

Answers

To find the volume of a container, you simply multiply: L(ength) x B(ase) x H(eight).

In total, you should get a volume of 1078in^3 (the bigger container) plus 175in^3 (the smaller container on top of the bigger one). The answer is 1,253in^3.

Hope this helped! :)

Which of the following statements is NOT true?

1) Similar quadrilaterals have all corresponding angles.

2) Similar quadrilaterals have corresponding sides in the same proportion.

3) Similar quadrilaterals are always reflections of one another.

4) Similar rectangles have corresponding angles & sides that are in proportions

Answers

Final answer:

The incorrect statement about similar quadrilaterals is that they are always reflections of one another. Similarity requires equal angles and proportional sides, but does not require figures to be reflections.

Explanation:

The statement that is NOT true among the ones provided about similar quadrilaterals is "Similar quadrilaterals are always reflections of one another."While similar quadrilaterals do have corresponding angles and sides that are in proportion, that alone does not necessitate that one is a reflection of the other.

Reflection involves a specific type of isometry where the figure is flipped across a line, creating a mirror image.

Similarity, on the other hand, only requires that all angles are congruent and all sides are in proportion, regardless of any reflection or orientation.

To further illustrate, consider two rectangles that are similar. They may simply have their sides scaled up or down by the same factor, without necessarily being reflections of one another.

On the other hand, two shapes that are reflections of each other would be congruent, implying that they are the same size as well as being mirror images with respect to a line of reflection.

Final answer:

The statement that is NOT true is number 3: Similar quadrilaterals are always reflections of one another.

Explanation:

The statement that is NOT true is number 3) Similar quadrilaterals are always reflections of one another.

Similar quadrilaterals have all corresponding angles (statement 1) and corresponding sides in the same proportion (statement 2). However, not all similar quadrilaterals are reflections of each other. Similarity refers to the relationship between the corresponding angles and sides of two shapes, not their orientation or position in space.

For example, consider two rectangles with different orientations, but the same angle measures and ratio of corresponding sides. These rectangles are similar, but they are not reflections of each other.

Solve the system of equations for 7x+2y=16 and -21x-6y=24

Answers

Simplifying
7x + 2y = 16

Solving
7x + 2y = 16

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2y' to each side of the equation.
7x + 2y + -2y = 16 + -2y

Combine like terms: 2y + -2y = 0
7x + 0 = 16 + -2y
7x = 16 + -2y

Divide each side by '7'.
x = 2.285714286 + -0.2857142857y

Simplifying
x = 2.285714286 + -0.2857142857y

Jewelers building a pen for her baby turtles. She wants the pain to be 30 in long and 45 in wide. What piece of wood will Jill need to purchase to buildTurtle pin?

Answers

135 I think just multiple 45x30

Please Help!! Will pick brainliest!

Answers

small circle 2/4 = 1/2 and the big circle is 3/5 i hope this is correct. im truly sorry if this was wrong

(60 Points)


Question 1
Use the net to determine the total surface area.

(Picture 1)


A. 72 in2


B. 192 in2


C. 232 in2


D. 200 in2

Question 2
Use the net to determine the total surface area.

(Picture 2)


A.270 in2


B. 330 in2


C. 350 in2


D. 310 in2

Question 3
Use the net to determine the lateral surface area.

(Picture 3)


A. 134.4 in2


B. 72 in2


C. 103.2 in2


D. 92.8 in2

Question 4
Use the net to determine the total surface area.

(Picture 4)


A. 528 cm2


B. 480 cm2


C. 336 cm2


D. 192 cm2

Question 5
Use the net to determine the total surface area.

(Picture 5)


A. 249.6 cm2


B. 499.2 cm2


C. 108 cm2


D. 278.4 cm2

Answers

A
D
C
B

I believe those are your answers

The total surface area of each of the figure are 232 inches², 310 inches², 103.2 inches², 336 cm² and 249.6 cm².

What is Surface Area?

The area of a three dimensional object on it's outer surface is called the surface area of the object.

1) Total surface area = (10 × 8) + (10 × 2) + (10 × 8) + (10 × 2) + (8 × 2) + (8 ×2)

                                  = 232 inches²

2) Total surface area = 2 [(10 × 7) + (10 × 5) + (7 × 5)]

                                  = 310 inches²

3) Total surface area = (2)(6)(4) + (2)(1/2)(6)(5.2) + (6)(4)

                                   = 103.2 inches²

4) Total surface area = (4)(1/2)(8)(12) + (12)(12)

                                   = 336 cm²

5) Total surface area = (4)(1/2)(12)(10.4)

                                   = 249.6 cm²

Hence the total surface area area found.

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Elaina ran 2.52 miles on Monday, 4.53 miles on Wednesday, and 3.45 miles on Saturday. What percent of the total miles did Elaina run on Monday?

Answers

To calculate the percent of total miles Elaina ran on Monday, add her running totals, find the fraction for Monday, and convert it to a percentage. Elaina ran 24% of her total weekly miles on Monday.

To determine what percent of the total miles Elaina ran on Monday, we first need to calculate the total number of miles she ran for the week. Then, we'll find out what fraction represents Monday's run in relation to the total, and finally convert that fraction to a percentage.

First, we sum up the miles:

Monday: 2.52 milesWednesday: 4.53 milesSaturday: 3.45 miles

Total miles = 2.52 + 4.53 + 3.45

Total miles = 10.50 miles

Next, we determine what fraction of the total distance was run on Monday:

Monday's fraction = Monday's miles / Total miles = 2.52 / 10.50

Finally, we convert this fraction to a percentage:

Monday's percentage = (Monday's fraction) x 100 = (2.52 / 10.50) x 100

Monday's percentage = 24% (rounded to the nearest whole percent)

Thus, Elaina ran 24 percent of her total weekly mileage on Monday.

This is an EXPLAIN YOUR THOUGHTS QUESTION, be sure to answer ALL parts of the questions and show all your work.

Task: Find the surface area of a square pyramid with each side of the base measuring 6 cm and the slant height is 12 cm.

Part a) Identify the known values

Part b) Set up the equation that you will use to solve (be sure to include the known values and the variable that you are trying to solve for)

Part c) Solve the equation. (Be sure to include units!)

Answers

a) The known values are ...
• the edge length of the square pyramid base is 6 cm
• the slant height of the square pyramid faces is 12 cm

b) The surface area is the sum of the area of the base and the area of the four triangular sides. The area of a triangle is half the product of base length and height (slant height, in this case).
  A = b² +4*(1/2)*bh = b(b +2h)
Substituting known values, we have ...
  A = (6 cm)*(6 cm +2*12 cm)

c) A = (6 cm)*(6 cm +24 cm) . . . . order of operations: multiplication inside parens
  A = (6 cm)*(30 cm) . . . . . addition inside parens
  A = 180 cm² . . . . . . . . . . multiplication
The area of the pyramid is 180 cm².

janis and susan went to a clearance sale at a clothing store all blouses were selling for the same price and all skirts were selling for the same price janis bought 4 blouses and skirts in total of $68 what was the cost of each blouse?

Answers

Final answer:

If all 4 items were blouses, each blouse would cost $17. Without knowing how many skirts were bought, we can't definitively determine the exact price of each blouse.

Explanation:

In order to find the cost of each blouse we need to follow the step-by-step solution. Imagine that all items Janis purchased were blouses. As we don't know the exact number of skirts she bought, assume she bought 4 blouses for $68, so the price of one blouse would be $68 divided by 4, which equals $17. However, if Janis also purchased skirts which are not necessarily the same price as blouses, the price of a blouse could actually be less than $17. Without further information on the number and price of skirts, we can't definitively say what the price of each blouse would be.

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How many solutions over the complex number system does this polynomial have
3x^6-x^3-4x^2+3x+52=0

Answers

For this case we have the following polynomial.
 We note that the polynomial graph cuts only the vertical axis at one point.
 The graph has no other cut points on the x axis
 Therefore, the polynomial has:
 6 complex solutions
 0 real solution
 Answer:
 6 complex solutions
 See attached image

Answer:

6 complex solutions

Step-by-step explanation:

HEEEEEELLLLLLPPPPPP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ

Heather is planning a dessert display. She needs 4 ounces of strawberries for each dessert.

Part A: Heather is not sure how many desserts she will make. Write an expression with a variable that represents the amount of strawberries Heather needs for the desserts. Identify what the variable represents.

Part B: If Heather has 24 ounces of strawberries, how many desserts can she make? Create an equation and show all work to solve it.

Answers

Part A. 4d- the d is how many desserts will be made
part B. 6- 
24 / 4 is 6

Answer:

4x=24

Step-by-step explanation:

Beth drew four quadrilaterals which of the four quadrilaterals that she Drew is a regular polygon

Answers

D would be a regular polygon since regular polygons are defined as shapes that consist of the same sized angles and sides. 

A number x is greater than o

Answers

dude this is simple just x>0
X>0
It can be 1,2,3,4,5

calculate the area of a rectangle with an altitude of 30 cm and a diagonal of 50 cm

Answers

Final answer:

Given the diagonal and altitude of a rectangle, we can use the Pythagorean theorem to find the base. From there, multiply the base and altitude to find the area of the rectangle. In this case, the area is 1200 cm².

Explanation:

The question is asking to calculate the area of a rectangle given the altitude (height) and the diagonal. We have two parameters, the altitude which is 30 cm and the diagonal which is 50 cm. From this, we can infer that the rectangle forms a right triangle with the altitude and the base being the two perpendicular sides and the diagonal being the hypotenuse. In this case, we can apply the Pythagorean theorem: base² = diagonal² - altitude².

Absolving, we find the value of the base of the rectangle: base = sqrt(50² - 30²) = 40 cm. The area of the rectangle can be calculated using the formula: Area = base x altitude = 40 cm * 30 cm = 1200 cm². Therefore, the area of the rectangle is 1200 cm².

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if you flip a coin ten times, how many diffrent sequences of heads and tails are possible

Answers

Answer:

I'm pretty sure its D

Step-by-step explanation: Brainliest???

In a wooded area, you randomly select 10 trees and find that 3 are tagged. You conclude that there is a 30% probability of randomly selecting a tagged tree.

A. Empirical
B. Theoretical

Answers

It's Empirical, I believe.

A. It's Empirical (APEX)

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 2x − 4y = 6 −3x + 3y = 12

Answers

Final answer:

To eliminate the y-variable in the given system of equations and find the value of x, you can multiply the first equation by 3 and the second equation by 4 to make the coefficients of y equal. Then, add the two equations together to eliminate the y-variable. Finally, solve for x.

Explanation:

To eliminate the y-variable and find the value of x in the given system of equations, we can multiply the first equation by 3 and the second equation by 4 to make the coefficients of y in both equations equal. This will allow us to eliminate the y-variable when we subtract the two equations.

Multiplying the first equation by 3, we get: 6x - 12y = 18

Multiplying the second equation by 4, we get: -12x + 12y = 48

Now, we can add the two equations together, and the y-variable will cancel out: (6x - 12y) + (-12x + 12y) = 18 + 48

Simplifying, we have: -6x = 66

Dividing both sides by -6, we find: x = -11

Therefore, the value of x is -11.

Final answer:

To eliminate the y-variable and find the value of x in the system of equations, we can use the method of elimination. We can multiply the equations by coefficients to create opposite coefficients for the y-terms, which will cancel each other out when added together. The resulting equation can then be solved to find the value of x.

Explanation:

To eliminate the y-variable and find the value of x, we can use the method of elimination. In this case, we need to multiply the two equations by coefficients that will create opposite coefficients for the y-terms so that they will cancel each other out when added together. Let's multiply the first equation by 3 and the second equation by 4:

6x - 12y = 18

-12x + 12y = 48

Adding these two equations eliminates the y-variable:

-6x = 66

Solving for x, we divide both sides by -6:

x = -11

Use the graph of f (x) to find the solutions to the equation f (x) = 0.

A. two solutions: x = 6, -2
B. two solutions: x = -6, 2
C. one solution: x = -12
D. no solutions

Answers

The graph intersects y = 0 at x = 2 and x = -6, so the answer is B.

The graph of f(x) have two solution: x= -6, 2.

What is Solution of function?

To graphically solve a system of linear equations, we graph both equations in the same coordinate system. The system's solution will be found where the two lines intersect.

For instance, The intersection of the two lines is (-3, -4), which is the solution to this system of equations.

To find the solution of f(x) at f(x) = 0.

we need to focus on the the points where the graph cuts the x axis.

This is because when f(x)= 0 then it means that y= 0 such that the points will lies on the x axis.

Now, from seeing the function have two solutions.

Thus, the solution of the f(x) is -6 and 2.

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Which two words from the passage have nearly OPPOSITE meanings?
A influential, philosopher

B talent, interests

C support, against

D rights, changes

Answers

THE ANSWER IS A 
b IS talent and intersent have the same type of meaning
c to support and be against is are different but mean the same thing in a different word
D rights and changes are the way to suport and change people
C I believe is right

Annie is making square shaped flags to cheer on the swim team. The length of the side of the square is given by the expression 2x + 4. Which of the following gives an expression for the perimeter of the square? 4x + 8 2x + 16 8x +16 4x + 16 If x has a value of 5, what is the perimeter of the square? The perimeter is units. If x has a value of 3, what is the area of the square? Show all of your steps. Previous

Answers

If the side of the square is 2x+4, then the perimeter is [tex]P=4(2x+4)=8x+16[/tex].

If x=5, then the perimeter is P=8*5+16=56

If x=3, then the side of the square is 2*3+4=10 and the area is [tex]A=10*10=100[/tex]

The expression for the perimeter of Annie's square-shaped flag is 8x + 16 units. When x is 5, the perimeter of the flag is 56 units. If x is 3, the area of the flag is 100 square inches.

Annie is making a square-shaped flag with the side length given by the expression 2x + 4. To find the expression for the perimeter of the square, we recall that the perimeter of a square is the sum of all its sides. Since all sides of a square are equal, the perimeter is 4 times the length of one side. Therefore, the expression for the perimeter is 4(2x + 4), which simplifies to 8x + 16.

If x has a value of 5, we substitute 5 into our expression for the perimeter, giving us 8(5) + 16, which equals 40 + 16, so the perimeter is 56 units.

If x has a value of 3, the side of the square would be 2(3) + 4, which is 6 + 4, thus the side is 10 inches. The area of a square is the side length squared, so the area would be 10²or 100 square inches.

Find M angle P
The diagram is not a scale

Answers

106 + m∠p = 180

Subtract 106 from both sides. 

m∠p = 74°, the second option. 

PLEASE HELP! LAST QUESTIONS! I NEED AN 80% OR ABOVE TO PASS PLEASE HELP!
The circle graph below shows the percentages of Mrs. Frederick’s monthly budget for July. Her total monthly income is $2,800.

Pie Chart Below

In August’s monthly budget, Mrs. Frederick spent $126 more on clothes than she did in July. In August, what percentage of her monthly income of $2,800 was spent on clothes?
A 15%
B 12.5%
C 11.5%
D 10%

The Hernandez family has a monthly income of $4,500. The Thomas family has a monthly income of $3,200. The two circle graphs show the monthly budgets of two families.

pie charts below

Which statement is supported by the data in the two graphs?
A The Thomas family spends more dollars each month on transportation than the Hernandez family does.
B The Hernandez family spends more dollars each month on food than the Thomas family does.
C Both families spend more dollars on “other” than on transportation.
D Both families spend the same amount of dollars each month on housing.

Hassan deposited $7,500 into a bank account. At the end of 3 years, the account had earned $900 in simple interest. What rate of interest did the account earn per year?
A 2.78%
B 4%
C 8.33%
D 12%

Mr. Wilt prepares some chicken wings for a picnic. The bar graph below shows the number of different types of wings he prepares.

Bar graph below

Based on the bar graph, which of these statements is true?
A Mr. Wilt prepares 2 more plain wings than hot wings.
B Mr. Wilt prepares twice as many plain wings as hot wings.
C Mr. Wilt prepares 2 more barbecue wings than garlic wings.
D Mr. Wilt prepares twice as many barbecue wings as garlic wings.

Which of the following would be best represented by a circle graph?
A the heights of different types of trees
B the number of votes for each of 5 candidates for class president
C theamountofwaterthatfilledasinkafter1,2, 3, and 4 minutes
D the number of hours each student studied compared to their grades on a test

The ages of the members of a volunteer group are shown below. 13, 14, 14, 14, 15, 15, 15, 16, 16, 21, 23 Which box and whisker plot best represents these data?

Data below

A
B
C
D

Answers

The answer to the first question is B.12.5%. The answer to the second question is A. The Thomas family spends more dollars each month on transportation than the Hernanez family does. The answer to the third question is B.4%. The answer to he fourth question is A.Mr. Wilt prepares 2 more plain wings than hot wings. The answer to the fifth question is B.The number of votes for each of 5 canidates for class president. I don't know if I'm correct on this question but I think the answer to the last question is D. Hope this helped.
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Danielle ran 3 1/8 miles on Tuesday and 4 and 1/2 miles on Wednesday and 5 1/4 miles on Thursday how far did Danielle run all together this Which of these choices is a drawback of the clean water act ? A. It targets point sources pollution B. It targets non point source pollution C. It excludes agriculture runoff D. It excludes lakes rivers and streams List 3 advantages to Hamlet committing suicide Michael, a freelance editor, charges the rates shown in the table below to edit manuscripts. The cost per page increases as the quality of editing improves. Michael also gives a 5% discount if the entire amount is paid up front. A 2 column table with Type of Editing and Cost per page as the column headings. Express Proofreading costs 2.20 dollars, Basic Proofreading 2.80 dollars, Extended Proofreading 3.90 dollars, and Deep Editing 12 dollars Maria has a 25-page manuscript. The equation below shows the relationship between the total cost of editing 25 pages, T, and the cost per page, c, if she gets the 5% discount: 25c 0.05(25c) = T Using the equation, what is the best quality of editing that Maria can get done for a maximum of $66.50? Vanitas was a style used for what kind of paintings? An ice skater starts a spin with her arms stretched out to the sides. she balances on the tip of one skate to turn without friction. she then pulls her arms in so that her moment of inertia decreases by a factor of 4. in the process of her doing so, what happens to her kinetic energy? (a) it increases by a factor of 4. (b) it increases by a factor of 16. (c) it remains constant. (d) it decreases by a factor of 4. (e) it increases by a factor of 16. When reinforcing instructions to a patient who will self-administer insulin injections at home, it is important to to remind the patient to Help me please !!! Very quick!! water droplets forming on the inside of a cold windshield is an example of What plus what plus what equal 823 To find the length ab of a small lake, a surrounding veyor measured angle acb to 96, ac to be 91 yards, and bc to be 71 yards. what is the approximate length of the lake? identify the type of conic section that has the equation 4x^2+25y^2=100 and identify its domain and range. Please help !!Question posted below Based on the information provided here, crude oil is:an elementa compounda mixtureits mixture "which key do you hold down to select a group of contiguous files" Security adviser henry kissinger arranged richard nixon's surprising diplomatic trip to Two students are planning an experiment that will test how planaria (aquatic flatworms) respond to different environments. They will conduct two investigationsone that tests the worms responses to different water temperatures and one that tests the worms responses to different levels of acidity. Student 1 wants to buy two groups of flatworms and use a different group for each investigation. Student 2 thinks the same group of worms should be used for both investigations. Do you think either students method would give more accurate results? Why or why not? Explain your response. Terminacion colectiva de las relaciones de trabajo concepto Grace has one $10 bill and three $5 bills she spends 9.30 on a belt and $4.20 on snack how much money does grace have left What is the mean of 20, 37, 43, 54, 83, 102, 117, 160, 208?