Question

A car is traveling at 60 mph. If the rate of speed increases 4 mph each hour,

how long will it be before the car is traveling at a rate of 80 mph?
A) 4 hours
B) 5 hours
C) 6 hours
D 7 hours​

Answer 1

B=5 hrs

Step-by-step explanation:

becoz if you add 4 mph/hr

it will graually be 80 in 5 hrs

Answer 2

5 hours ................