The number of postcards Samantha bought is 12.
What is an Equation?An equation is a mathematical statement that is formed when two algebraic expressions are equated using an equal sign.
Erika bought 6 postcards
Let the number of postcards Erika bought is given by x
Erika bought twice as many postcards as Nathan bought
Let the number of postcards Nathan bought is given by y
x = 2y
Samantha bought 4 times as many postcards as Nathan
Let the number of postcards Samantha bought is given by z
z = 4y
The value of x = 6, so
6 = 2y
y = 3
z = 4y
z = 12
Postcards bought by Samantha is 12.
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Solve for P=b+2a+2c for b
b + 2a + 2c = p or unknown answer,
b plus 2 times a plus 2 times c equals p the unknown answer
From there you use the strategy of guess and check to get your answer.
Which of the binomials below is a factor of this trinomial? x2 + 14x + 40
Answer:x+4
Step-by-step explanation:
Answer: x + 10
Step-by-step explanation:
Marissa said that multiplying 8.0 by 1,000,000 would increase the value of the 8 because there would be 6 more zeros after the decimal point. Explain what is wrong with marissa's statement
The first quartile of a data set is 23, the median is 30, the third quartile is 33, and an outlier is 6. Which of these data values would be represented by a point in a modified box plot?
A. 30
B. 23
C. 6
D. 33
Answer: C. 6
Step-by-step explanation:
A box-plot mainly represents a five number summary of :
1) lowest data value 2) largest data value 3) first quartile 4) second quartile (Median) 5) third quartile.
The modified version of box-plot displays the outliers of the data by a point if present,
Since 6 is the outlier of the data.
Therefore the 6 is the value which would be represented by a point in a modified box plot.
Find the surface area of a cone if the height is 14 centimeters and the slant height is 16.4 centimeters.
Jamal wants to build a square pen for his dog that has an area of 144 ft². What is the length of each side of the pen?
A: 12ft
B: 15ft
C: 36ft
D: 72ft
What the area of this polygon is
What is the slant height for the given pyramid to the nearest whole unit?
Pyramid base = 10 cm Height = 12 cm
A. 7 cm
B. 11 cm
C. 13 cm
D. 16 cm
Answer:
13 cm
Step-by-step explanation:
Done the test.
If 20% is 3.5, what is 100%?
Oki I have a few but I’m giving a lot of points I just didn’t feel like doing them separate.
Anne wants to draw two adjacent angles on a straight line. She wants one angle to be 24 degrees more than the other angle. Select two correct choices.
A. The measure of the smaller angle is 33 degrees.
B. The measure of the smaller angle is 78 degrees
C. The measure of the larger angle is 57 degrees.
D. The measure of the larger angle is 102 degrees.
A triangle has a side 4.23 meters in length, a 63.2 degree angle, and a 75.9 degree angle. Which of the following statements about the triangle is true. Select all that apply.
A. The triangle is an obtuse triangle.
B. The triangle cannot be equilateral.
C. The triangle must have a third angle measuring 40.9 degrees.
D. The triangle should be isosceles
3. Mika used the proportion y-3 over x equals one third. (Y-3/x= 1/3). When deriving the equation on a line with similar triangles. Which of the statements are correct. Select two that apply.
A. It has a slope of negative one third. (-1/3)
B. It has a slope of one third. (1/3)
C. It has a slope of 3.
D. It has a y intercept of 3.
E. It has a y intercept of one third. (1/3)
F. It has a y intercept of 3.
This is a parallelogram shaped sliding door. It has four sides. (P,Q) (P,S) (S,R) (Q,R) and (Q,P)
More simply... Q is on the top right corner of the parallelogram, R is on the bottom right corner of the parallelogram, S is at the bottom left corner, and P is at the top left corner.
Which two of the statements are true if the door moves two feet to the right.
A. Side PQ would be parallel to SR, and angle R would measure 56 degrees.
B. Side PS would be parallel to side QR and angle S would measure 124 degrees.
C. Side PQ would be parallel to side PS and angle P would measure 56 degrees.
D. Side QR would be parallel to side SR and angle Q would equal to 62 degrees.
Last one!!
A parallelogram has the verifies (-4,2) (-3,5) (2,-2) (3,5)
The parallelogram was rotated 270 degrees counterclockwise about the origin. Which 3 would be the vertex of the origin.
A. (-3,5)
B. (-2,-2)
C. (-2,4)
D. (2,4)
E. (3,-5)
F. ( I’m rlly sry but I forgot this one)
The correct option is (A) (-3,5). The answer covers the relationship between angles in quadrilaterals, properties of triangles, and concepts related to similar triangles and equations.
Angles in quadrilaterals:
In the first scenario, if one angle is 24 degrees more than the other on a straight line, the correct choices are A. The measure of the smaller angle is 33 degrees and D. The measure of the larger angle is 102 degrees.
Triangles:
For the triangle with sides 4.23 meters, the correct statements are A. The triangle is an obtuse triangle and D. The triangle should be isosceles.
Similar Triangles and Equations:
When using the proportion y-3/x=1/3, the correct statements are A. It has a slope of -1/3 and E. It has a y-intercept of 1/3.
Triangle ABC has vertices A(1,4), B(???2,4) , and C(???1,???1) . A dilation with a scale factor of 0.25 and center at the origin is applied to the triangle. What are the coordinates of C' in the dilated image? Enter your answer in the boxes. PLEASE BE RIGHT
n complete two or more sentences, determine the appropriate model for the given data and explain how you made your decision. (1,0), (2,1.5), (5,2.5), (8,3)
Johnson High School has a total enrollment of 1829 students. Season tickets are sold for the basketball season and 604 students buy the tickets. About what percent of the student body purchased season tickets?
PLEASE HELP!! Show simple working out
There are three numbers that are their own cube roots. What are the numbers?
Final answer:
The three numbers that are their own cube roots are 0, 1, and 8.
Explanation:
The three numbers that are their own cube roots are 0, 1, and 8.
A cube root of a number is a value that, when raised to the power of 3, gives the original number. For example, the cube root of 8 is 2 because 2³ = 8. Similarly, the cube root of 0 is 0 and the cube root of 1 is 1.
So, the numbers that are their own cube roots are 0, 1, and 8.
Write a algebraic expression for the quotient of 300 and sum of b and 24
The algebraic expressions for the quotient of 300 and sum of b and 24 would be; 300/(b + 24).
What is an expression?Expression is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
We are given that a is the quotient of 300 and sum of b and 24
We have a dividend and a divisor in a division problem.
The first piece (300) is the dividend, the numerator if we are writing it in fraction form or the first number when using the standard division sign.
The divisor is the sum of b + 24 which means we need to find the answer before dividing by it.
Then place a parentheses around it.
300/(b + 24).
This is an expression, there should be NO equals sign.
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The teacher bought new crayons for her class. She bought 7 packs of 9 crayons. She already has 17 crayons in her classroom. She wants to divide the crayons evenly between her 10 students. How many crayons will each student receive? Use c as the variable. Write an equation and solve the problem.
Mr. Watkins earns $35 an hour at his new job. During a typical month, he works a total of 160 hours. Mrs. Watkins is a homemaker. After meeting the estimated monthly expenses, how much money will the family have left to spend on other items?
A) $1150
B) $1322
C) $1445
D) $1500
Multiply: (−8x − 15)(−12x2 + 12x + 3)
A) 96x3 + 84x2 − 156x − 45
B) 96x3 + 84x2 − 204x − 45
C) 96x3 + 276x2 − 204x − 45
D) 96x3 − 84x2 − 156x − 45
Water from a leaking faucet is dripping into a cylindrical cup. The height of water in inches, y, after x hours is graphed belowThe water level increases by 1 inch each hour.
A The water level increases by 1 inch each hour.
B The water level increases by 2 inches each hour.
C The water level increases by a factor of 1/2each hour.
D The water level increases by a factor of 2 each hour.
Find 9*4 1/3 mentally using the distributive property
Jerry started doing sit-ups every day. The first day he did 15 sit-ups. Every day after that he did 4 more sit-ups than he had done the previous day. Today Jerry did 65 sit-ups. Write an equation that could be solved to find the number of days Jerry has been doing sit-ups, not counting the first day. Let n represent the number of days.
Thanks
The first day Jerry did 15 sit-ups:
a0 = 15
The 2nd day he did 4 more sit-ups then the previous:
a1 = a0 + 4
The 3rd day he did 4 more sit-ups then the previous:
a2 = a1 + 4
a2 = a0 + 4 + 4
a2 = a0 + 4*4
the (n+1)-th day he did:
an = a0 + 4n
Today Jerry did 65 sit-ups means we have: an = 65 and we need to find n
a0 + 4n = 65
15 + 4n = 65
Now to solve
subtract 15 from both sides
4n = 50
divide both sides by 4
n = 12.5
But I think this is counting the first day
Not counting the first day would be
4n = 65
n = 16.25
I guess that's the answer :)
The equation of A=25w Gives the area A (In square feet) of a rectangular dance floor with a width of W feet
Somebody Really Help On These Questions 5 and 6!!!!!!!!!!!!!!!
What is the area of the triangle in this coordinate plane
this figure is 1/4 of a circle what is the best approximation for the perimeter of the figure use 3.14 to approximate pi
A) 3.1
B) 6.3
C) 7.1
D) 12. 3
Answer: Option 'C' is correct.
Step-by-step explanation:
Since we know that
The figure is known as "Quadrant" in which angle is 90° .
As we know that "Length of an arc":
[tex]Length=\frac{\theta}{360\textdegree}\times 2\times 3.14\times r\\\\Length=\frac{90\textdegree}{360\textdegree}\times 2\times 3.14\times 2\\\\Length=\frac{1}{4}\times 12.56\\\\Length=3.14[/tex]
Perimeter of the figure is given by
[tex]3.14+2+2=7.1[/tex]
Hence, Option 'C' is correct.
Answer:
c
Step-by-step explanation:
i took the test 4 days ago
What is the answer for 3÷3134
The square of a positive number decreased by twice the number is 48. Find the number
If 2/3 of N is 4, then 1/2 of N is
using the graph above, explain the meaning of the following coordinate pairs and decide if it belongs to jazmine or kiara