Question

in the formula rt= d, r is rate, t is time, and d is distance. What is the rate for a runner who completes 7.5 miles in 1.5 hours?

A 11.25 mph

B 9 mph

C 6 mph

D 5 mph

Answer 1

option c is correct

rt = d
r × 1.5 = 7.5
r = 7.5 ÷ 1.5
r = 5 mph

Answer 2

Answer:

$\huge{\red{\boxed{D. \: \: \: \: \: \: \: 5 \: mph}}}$

Steps:

$\: \: \: \: \: \: \: rt = d \\ = > r = \frac{d}{t} \\ = > r = \frac{7.5 \: miles}{1.5 \: hours} \\ = > r = 5 \: mph$