a hobby shop has 4 times as many model airplanes as model helicopters. the total number of models is 35. how many model airplanes does the hobby shop have?

Answers

Answer 1

Answer: there are 8 airplanes...maybe...check me on a calculator....

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Laura earns $255 by working 20 hours each week.Write an equation to find how much Laura earns per hour. Use h to represent the hourly rate.

Answers

We can use the equation:

h = 225/20

To solve just divide 225/20:

h = 11.25

Your equation:225/20= h. H stands for hourly rate, btw. To find the answer, you would just have to do 255 divided by 20.Hope this helps ya:) I provided a pic to show my work below:)

Point E is located at coordinates (-7, -5). Point F is located at the coordinates (-2, 7). What is the length of EF?A. 21 units

B. 17 units

C. 13 units

D. 15 units

Answers

Answer: B.17

Step-by-step explanation:

21 trucks, each with a 2.5-ton payload, are needed to unload a freight train. How many trucks, each with a 3.5-ton payload, would be needed to do the same job? What is the constant of variation?

Answers

tons needed to unload a freight train= 21×2.5 =52.5
number of 3.5-ton payload trucks needed to unload a freight train=52.5÷3.5 = 15

15 Trucks , Each With A 3.5-Ton Payloaf , Would be Needed To Do The Same Job.

Find the sale price. Original price: $50 Discount: 15%

Answers

50 x .15= 7.5, 50 - 7.5 = 42. 50. $42.50 is the sale price

It is eassy
15% of 50
0.15x50=7.5
I hope i helped you

Jan,Mya, and sara ran a total of 64 miles last week. Jan and Mya ran the same number of miles. Sarah ran 8 less miles than Maya. How many miles did Sarah run?

Answers

Jan, Maya and Sarah run a total of 64 miles per week
How many miles did Sarah run if she ran less than 8 miles compare to Maya and Jan
Jan and Maya = x
Sarah = x
Total miles = 64

=> 64 = x + x + x-8
=> 64 = 3x – 8
=> 72 = 3x
=> x = 24
Since Jan and Maya ran the same miles, they ran 24 miles each
Since Sarah is 8 less than Maya’s and Jan’s ran each
=> x – 8
=> 24 -8
=> 16
Sarah ran 16 miles in a week.

How do I simplify:

-4x + 4x*
______
-32x+32

* meaning squared

Answers

-x/8 you take -4x out as a factor of the numerator and 32 out as a factor of the bottom line. Then cancel the (1-x)'s and youre left with -4x/32. Then divide both top and bottom by 4 = -x/8

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