Question

Timmy is on a 2100 mile trip across the country. Over the last 12 hours of driving Timmy has traveled 720 miles.

If he continues traveling at the same rate, how many more hours will it take him to complete his trip?
A) 15 hours
B) 23 hours
C) 35 hours
D) 47 hours

Answer 1

23 hours

Explanation:

First divide 720 by 12

720/12=60

Since we know he is going 60 mph we will now divide 2100 by 60

2100/60=35

Since he has already traveled 12 miles we will subtract it from 35

35-12=23

Answer 2

B) 23 hours

Explanation:

distance = rate * time

720 = rate * 12

divide by 12

720/12 = rate*12/12

60 miles per hour = rate

the total distance is 2100

he has completed 720

he has (2100-720) = 1380 miles left to go

distance = rate * time

1380 = 60 * time

divide by 60

1380/60 = time

23 = time