Question

On a tractor, the diameter of the large tire is 5 feet and the diameter of the small tire is 3 feet 9 inches.

A toy tractor is made to scale from the actual tractor. On the toy tractor, the diameter of the large tire is 8 inches
What is the diameter in inches of the small tire on the toy tractor?

Answer 1

3 inches

convert 5 feet to inches

5ft= 60in

proportion of the big tires is 60:8 or 15:2

the small tire on the toy model is unknown but the small tires on the actual model is 3ft and 9 in

convert that to inches as well

3ft and 9in= 45 inches

45÷15= 3 (this is to see how many times the x (15) increases so that we can equally increase the y value

3x2= 6

hope this helped!

Answer 2

9514 1404 393

Answer:

6 in

Explanation:

The sizes are proportional, so you have ...

toy size / actual size = (8 in)/(5 ft) = x/(3.75 ft)

Multiply by 3.75 ft to get ...

x = (8 in)(3.75/5) = (8 in)(0.75) = 6 in

The small tire on the toy is 6 inches in diameter.

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3 ft 9 in = 3 9/12 ft = 3.75 ft