Question

How long would it take to travel 315 mi at the rate of 45 mi/h ?

A. 7H
B.240 H
C.360 H
D.14,175 H

Answer 1

It's either the answers A or B. You can decide.

Answer 2

Set a proportion
45/1=315/x
=45x=315
=45/45x=315/45
x=7
It will take 7 hours to travel 315 miles at the rate of 45miles/hour