one fifth of the boys in the classroom have brown hair.
Need help with B. and C.
Hi, here is the solution...
Part B)
The Navy Pier Ferris has the circumference is 56% of the circumference of the first Ferris wheel.
The Navy Pier Ferris Circumference = 439.6 feet
Let's assume "x" be circumference of first Ferris wheel.
56% of x = 439.6
0.56 x = 439. 6 [56% = 0.56]
x = 439.6/0.56
x = 785.
Therefore, the circumference of the first Ferris wheel is 785.
It is diameter = 785/3.14 = 250 feet
So it is radius = 250/2 = 125 feet.
Part C)
The circumference = 785 feet
Speed = Distance/Time
Speed = 785/9
Speed = 87.2 feet per minute.
That's it. Hope you will understand the steps.
Thank you. :)
challenge questions 1
9)
[tex]\frac{24z^{5}y^{4}}{3z^{-2}y^{5}} = \frac{24}{3}*\frac{z^{5}}{z^{-2}}*\frac{y^{4}}{y^{5}} = \frac{8}{1} *\frac{z^{5+2}}{1}*\frac{1}{y^{5-4}} = \frac{8z^{7} }{y}[/tex]
11)
(a²b)³ = a²⁽³⁾b¹⁽³⁾ = a⁶b³
12)
The exponent tells you how many places to move the decimal. The positive/negative sign tells you which direction to move the decimal (negative is left, positive is right).
8.4 x 10⁻⁵ move the decimal 5 places to the left = 0.000084
what is 25% of 1000?????
Hey there!
25% of 1,000
= 25% * 1,000
= 25/100 * 1,000/1
= 25 ÷ 5 / 100 ÷ 5 * 1,000/1
= 5 / 20 * 1,000/1
= 5 ÷ 5 / 20 ÷ 5 * 1,000/1
= 1 / 4 * 1,000 / 1
= 1/4 * 1,000/1
= 1(1,000) / 4(1)
= 1,000 / 4
= 1,000 ÷ 4
= 250
Therefore, your answer should be: 250
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Answer any of these questions and still get a good rating if you are correct. (Also this is multiplication with fractions)
1.What is the product in simplest form?
−8/9⋅5/6
2.What is the product?
Enter your answer as a fraction, in simplified form, in the box.
−4/5⋅10/16
3.(−2.1)⋅(−1.4)
What does a represent?
A.foci
B. Minor axis
C. Major axis
S. Vertices.
Brian and Chris went together to Target to find party favors for a birthday party they are throwing together. Brian found 4 items that cost the same amount. Chris bought 3 items that each cost $2.50 more than Brian’s items each cost. Brian and Chris both paid the same amount of money. What was the individual cost of each person's items?
(a) Write an equation. Let x represent the cost of one of Brian's items.
(b) Solve the equation. Show your work.
(c) Check your solution. Show your work.
(d) State the solution in complete sentences.
Let us assume Brian's one item cost = $ x.
Chris one item cost is $2.50 more than Brian’s items each cost.
Therefore, Chris one item cost is = $(x+2.50).
Total cost of Brian's 4 items = 4*x = 4x.
Total cost of Chris's 3 itmes = 3*(x+2.50) =3(x+2.50)
It is said that Brian and Chris both paid the same amount of money.
Therefore,
Total cost of Brian's 4 items = Total cost of Chris's 3 itmes.
a) We can setup an equation now,
4x = 3(x+2.50), where x represent the cost of one of Brian's items.b) Let us solve above equation for x.
4x = 3(x+2.50)
distributing 3 over (x+2.50), we get
4x = 3x + 7.50.
Subtracting 3x from both sides we get
4x-3x = 3x-3x =7.50.
x = 7.50.Therefore, the cost of one of Brian's items = $7.50.
Chris one item cost is $2.50 more than Brian’s items each cost.
Chris one item cost is = 7.50 +2.50 = $10.00.
c) Plugging x=7.50 in the equation we get to check the solution.
4x = 3(x+2.50)
4(7.50) = 3(7.50+2.50).
30 = 3(10.00)
30=30.
Therefore, solution x=7.50 is correct.
d) The cost of one of Brian's items is $7.50 and Chris's one item cost is $10.00.Answer:
Brians is $7.50 and chris is $10.00!
I'm sorry I don't have the math but I submitted the assignment and got a 100!
I need help solving this question
C.
Combine like terms when adding f(x) and g(x) 2x^2 + x^2 and 1 + (-7) = 3x^2 - 6
Ichiko has guitar practice at 5:00 P.M. on Wednesday. It takes 20 minutes for him to get to his lesson from school. He spends an hour in the science lab before leaving. If it takes 10 minutes to get ready for the lab, what time does his class end?
5:00 practice - 20 minute walk - 60 minutes in science lab - 10 minutes to get ready for the lab.
5:00 - 90 minutes
3:30 for class end time
Miss Kincaid is 65 inches of ribbon is your post to instantly 5 inches of ribbon how many students get a 5 inch piece of ribbon
To determine the number of 5-inch pieces of ribbon that can be obtained from a 65-inch ribbon, divide the total length by the length of each piece. So, 13 students can each get a 5-inch piece of ribbon from the 65-inch ribbon.
Explanation:To determine how many 5-inch pieces of ribbon can be obtained from 65 inches of ribbon, we divide the total length of the ribbon by the length of each piece. So, we divide 65 by 5:
Therefore, 13 students can each get a 5-inch piece of ribbon from the 65-inch ribbon.
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Lamar is solving the equation x2−12x=−6 by completing the square. Which shows Lamar's next step and the solution to the equation?
To solve the equation x²−12x=−6, Lamar should first move the constant to the other side and complete the square, leading to x = 6 ±√30. This equation, which is a type of quadratic or second-order polynomial, may have two solutions, a typical characteristic of such equations.
Explanation:The equation presented is x²−12x=−6. To solve this equation by completing the square, we first move the constant term to the other side, which leads to x² - 12x = -6, or x² - 12x + 36 = -6 + 36. We added 36 on both sides because (12/2)² = 36, which is a step in completing the square for the equation. Thus, we have (x-6)² = 30. Now, solve for x: x - 6 = ±√30, so x = 6 ±√30.
This method, known as completing the square, is a typical approach to solving quadratic equations. The general quadratic equation ax²+bx+c = 0 can also be solved using the quadratic formula -b ± √(b² - 4ac) / 2a. With both methods, remember that a quadratic equation will usually have two solutions, as it is a second-order polynomial.
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Write the numerical expression for the product of 8 and the sum of 9 and 11.3. Then evaluate it.
Solution: The numerical expression is [tex]8\times (9+11.3)[/tex] and the value of this expression is 162.4.
Explanation:
The sum of 9 and 11.3 is written as [tex](9+11.3)[/tex].
The product of 8 means the expression should multiply by 8.
According to the given information the the product of 8 and the sum of 9 and 11.3 is written as [tex]8\times (9+11.3)[/tex].
To evaluate the value of the expression first we have to add 9 and 11.3 after that multiply the result by 8.
[tex]8\times (9+11.3)=8\times (20.3)\\8\times (9+11.3)=162.4[/tex]
Therefore, the numerical expression is [tex]8\times (9+11.3)[/tex] and the value of this expression is 162.4.
Answer:
162.4
Step-by-step explanation:
To write the numerical expression for the product of 8 and the sum of 9 and 11.3 we need to follow these steps:
Sum of 9 and 11.3 is given as follows:
[tex](9+11.3)[/tex]
Now the product of 8 and the sum of 9 and 11.3 is:
[tex]8(9+11.3)[/tex]
So the required expression is:
[tex]8(9+11.3)[/tex]
Solving the above expression we get:
[tex]8(9+11.3)=8(20.3)=8 \times 20.3=162.4[/tex]
Mary's account balance is -$45.62 Tom's account balance is -$42.55 which balance represents the greater number which balance represents the lesser amount owed
greater is Mary, lesser is tom
a large farm has 75 acres of wheat and 62.5 acres of corn. the farm crew can harvest the wheat from 12 acres and the corn from 10 acres per day. in how many days will all of the fields be harvested
Answer:
7 days
Step-by-step explanation:
First let's start with the wheat. If you know that there is 75 acres of wheat, and you can harvest 12 acres in one day, all you have to do is 75 divided by 12.
This would get you at 6.25, but a whole day would be 7.
Corn, you know that there is 62.5 acres. Same thing, you do 62.5/10, and will get you around 7 again.
a baseball coach bought some bats and gloves for the school's baseball team.the bats cost $20 to $35,and gloves cost $30 to $60.which of this does not represent a reasonable total purchase price for 15 bats and 12 gloves
A.$1,350
B.$890
C.$1,200
D.$705
Max cost of 15 bats = 15 x 35 = $535
Min cost of 15 bats = 15 x 20 = $300
Max cost of 12 gloves = 12 x 60 = $720
Mix cost of 12 gloves = 12 x 30 = $360
Min total cost = 360 + 300 = $660
Max total cost = 535 + 720 = $1255
The range is from $660 to $1255
=============> Answer (A) is out of the range
The dimensions of a rectangle can be given by x+7 and x+2. If the area of the rectangle is 66 square inches, what are the dimensions of the rectangle?
to solve for the dimensions (x+7)(x+2)=66,
we can first use the foiling method to simplify the left side.
x^2 + 2x + 7x + 14 = 66
x^2 + 9x + 14 = 66
now, subtract 66 from both sides.
x^2 + 9x - 52 = 0
now, split this into two parentheses.
(x + 13)(x - 4)
since the root of -13 would give you negative values, x=4. This means that the dimensions of the rectangle are 11 and 6.
The dimensions of the rectangle is 11 by 6 inches
How to determine the dimensions?The dimensions are given as:
x + 7 and x + 2
The area is given as:
Area = 66
The area of a rectangle is:
Area = Length * Width
So, we have:
(x + 7) * (x + 2) = 66
Express 66 as 11 * 6
(x + 7) * (x + 2) = 11 * 6
By comparison, we have:
x + 7 = 11 and x + 2 = 6
Solve for x
x = 4 and x = 4
Substitute 4 for x in x + 7 and x + 2
x + 7 = 4 + 7 = 11
x + 2 = 4 + 2 = 6
Hence, the dimensions of the rectangle is 11 by 6 inches
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write each percent as a decimal 89% 100% 0.01%
John and his family went out to eat at the bill of the food was $65 and it has a 20% tip what was the total cost other meal including the tip
$78
$65x.20=13
65+13=$78
stacey buys 6 pounds of chicken for $39. How much will she pay for 11 more pounds of chicken.
So she pays 6 lb of chicken for $39 then $39/6 = $6.30 is the price per pound.
11lb + 6lb = 17lb total of chicken then multiply it by the price per pound
17($6.50) = $110.50
Final answer:
Stacey will pay $71.50 for 11 more pounds of chicken.
Explanation:
To figure out how much Stacey will pay for 11 more pounds of chicken, we can use the given information that she bought 6 pounds of chicken for $39.
First, we need to find the cost of chicken per pound. To do this, we divide the total cost of chicken ($39) by the number of pounds (6). So, $39 / 6 = $6.50 per pound.Next, we can calculate the cost of 11 more pounds of chicken by multiplying the cost per pound ($6.50) by the number of pounds (11). So, $6.50 * 11 = $71.50.Therefore, Stacey will pay $71.50 for 11 more pounds of chicken.
simplify (3x+2)(x-7)
Remember to follow the FOIL method.
Note that: FOIL = First, Outside, Inside, Last.
Multiply
First: (3x)(x) = 3x²
Outside: (3x)(-7) = -21x
Inside: (2)(x) = 2x
Last: (2)(-7) = -14
-------------------------------------------------------------------------------------------------------------
3x² -21x + 2x -14
Combine like terms
3x² (-21x + 2x) - 14
3x² - 19x - 14
3x² - 19x - 14 is your answer
~Rise Above the Ordinary
Martha earns $12.47 per hour. John makes 3 times as much as Martha. How much does John earn per hour?
A.$36.00
B.$37.21
C.$37.41
D.$36.41
PLEASE HELP ME ASAP
The answer is C.37.41
Hanna walks 1 2/3 miles to school. After school she walks 1 1/2 mikes to work. How many miles does she walk before and after school?
Hanna walks a total of 3 1/6 miles before and after school.
To find how many miles Hanna walks before and after school, we can add the distances she walks to school and to work.
Distance to school = 1 2/3 miles
Distance to work = 1 1/2 miles
To find the total distance Hanna walks before and after school, add the two distances:
Total distance = 1 2/3 + 1 1/2
To add these fractions, we need to convert them to have a common denominator, which is 6:
1 2/3 = (3/3 + 2/3) = 5/3
1 1/2 = (3/2)
Now, we can add the fractions:
Total distance = 5/3 + 3/2
To add these fractions, we need to have a common denominator, which is 6:
Total distance = (5/3) * (2/2) + (3/2) * (3/3)
Total distance = 10/6 + 9/6
Now, add the fractions:
Total distance = 19/6
We can simplify this fraction:
Total distance = 3 1/6 miles
So, Hanna walks a total of 3 1/6 miles before and after school.
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Which expression is equivalent to 3/4 - 1/2?
what is the answer
−2=6/7p
Isolate the p. Note the equal sign. What you do to one side, you do to the other. Multiply 7/6 to both sides
(-2)(7/6) = (6/7)(7/6)p
p = (-2)(7/6)
Multiply -2 and 7, then divide by 6
p = (-2 x 7)/6
p = -14/6
Divide
p = ~-2.33 (rounded)
-2.33 is your answer
hope this helps
Hello there!
[tex]-2=6/7p\\[/tex]
Explanation:
↓↓↓↓↓↓↓↓↓↓
First you had to switch sides.
[tex]\frac{6}{7}p=-2[/tex]
Then you multiply by 7 from both sides of the equation.
[tex]7*\frac{6}{7}p=7(-2)[/tex]
Simplify
[tex]6p=-14[/tex]
Divide by 6 from both sides of the equation.
[tex]\frac{6p}{6}=\frac{-14}{6}[/tex]
Simplify it should be the correct answer.
[tex]p=-\frac{7}{3}[/tex]
Answer⇒⇒⇒⇒⇒p=-7/3
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie
Kevin gave ben $4.90 in dimes and quarters.if 10 coins were quarters how many coins were dimes which equation models this problem
10x0.25=2.50-4.90=2.40/.010= 24
24 dimes
Answer:
D)0.25 • 10 + 0.1 • d = 4.90
Step-by-step explanation:
Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?
-15m = -4m
-7m - 8 = m - 4
-3m - 8 = 4 - m
m - 4 = -7m - 8
-8 - 7m = -4 + m
-8 - 3m = 4 - m
It's B)
Sorry... I was late
Answer:
-7m - 8 = m - 4
Step-by-step explanation:
Our original equation is
-2m - 5m - 8 = 3 + (-7) + m
Combining like terms on the left, we have
-7m - 8 = 3 + (-7) + m
Combining like terms on the right, we have
-7m - 8 = -4 + m
Writing the equation with the variable first on the right hand side, we have
-7m - 8 = m - 4
estimit of 309 times 29 im in school
We can round 29 up to 30, and 309 up to 310. This gives us a rough estimate of about 9,300.
Find n so that number sentence below is true and explain your answer, referencing the relevant properties of exponents
Ugh, I hate FLVS. I'm not exactly sure, but i know that 2 to the 12 power is 24, and 2 to the fourth power is 8. Sorry I'm not being very helpful.
Combine like terms to simplify the expression. 5x + 4 + 2x + 5
7x+9
5x+2x= 7x
5+4=9
7x + 9 is the result when combining like terms.
Answer:
7x+9
Step-by-step explanation:
Add the numbers
5x + 4 + 2x + 5
5x+9+2x
Combine like terms
5x+9+2x
7x+9
Solution:
7x+9
what is the discriminant of p2+6p+9=0
p^2+6p+9=0
The discriminant of a quadratic is the expression inside the radical of the quadratic formula.
b^2−4(ac)
Substitute in the values of
a, b, and c.
6^2−4(1⋅9)
Evaluate the result to find the discriminant.
36-4(9)
36-36
0
The discriminant of the quadratic equation p²+6p+9=0 is zero, suggesting that it has exactly one real, repeated solution.
The discriminant of the quadratic equation p²+6p+9=0 is calculated using the formula D=b²-4ac, where a, b, and c are the coefficients of the quadratic equation ax²+bx+c=0. In this equation, a=1, b=6, and c=9. Substituting these values into the discriminant formula gives us:
D = b² - 4ac
D = (6)² - 4(1)(9)
D = 36 - 36
D = 0
The discriminant is zero, which indicates that the quadratic equation has one real, repeated solution, meaning the parabola touches the x-axis at a single point.
What is an equation of the line that is perpendicular to y=3x-9 and that passes through the point (3,1)
The correct answer is [tex]y=3x-8[/tex] as shown by the green line on the graph attached to this answer.