Question

Natasha is driving 300 miles and wants to make the trip in 5 hours.

Which equation and solution shows the average speed, s, that Natasha needs to drive in order to make her trip in five hours?




A

s5 =300;s=1500;1500 miles per hour




B

s−5=300;s=195;195 miles per hour



C

60=300;s=5;5 miles per hour




D

5s=300;s=60;60 miles per hour

Answer 1

The answer to this is D. 5s=300 s=60 60 mph.

Answer 2

rate * time = distance Distance is 300 miles.
Time is 5 hours. 
equation becomes: 

rate * 5 = 300 

solve for rate to get rate = 300 / 5 = 60 miles per hour. 

The correct answer is D.