Question

A runner is 7/8 mile from the finish line. If she can travel 3/8 mile per minute, how long will it take her to finish the race?

Answer 1

Answer:

7/3 minutes

Step-by-step explanation:

The speed if the runner is given by:

$speed = \frac{distance}{time}$

We have that: speed =3/8 miles per minute and distance =7/8 miles

We substitute into the formula to get:

$\frac{3}{8} = \frac{ \frac{7}{8} }{time}$

$time = \frac{ \frac{7}{8} }{ \frac{3}{8} }$

$time = \frac{7}{8} \times \frac{8}{3}$

This simplifies to

$\frac{7}{3}$

Therefore it will take 7/3 miniutes to finish the race.