Question

A boy rides his bike at a speed of 28 miles per hour. How
many hours will it take him to complete a trip of 120 miles?
Round your answer to the nearest whole number.
hours

Answer 1

Answer:

About 4 hours.

Step-by-step explanation:

Let's set up a proportion and cross multiply.

$\frac{28 miles}{1 hour} = \frac{120 miles}{x}$

Cross multiply.

120 = 28x

Divide by 28 on both sides.

= 4.28571428571

Round this to the nearest whole number, which is just 4. The answer is about 4 hours.