Question

John runs a marathon (26.2 miles) in 4 hours. Determine how many miles he runs per hour if the proportional relationship is represented by 4y=26.2x.(1 point)
Responses

104.8 mph
104.8 mph

0.15 mph
0.15 mph

7 mph
7 mph

6.55 mph

Answer 1

To solve for the miles per hour, we need to rearrange the equation in the form y = mx, where m represents the rate or speed.

Starting from 4y = 26.2x, we can divide both sides by 4:

y = 6.55x

This indicates that for every one hour (x=1), John runs 6.55 miles (y=6.55). Therefore, his speed is 6.55 miles per hour.

So the answer is 6.55 mph.