SOLUTION: Suppose a car moving at a constant speed travels 96 miles. If the car's speed was twelve miles per hour faster, it could have traveled 120 miles in the same amount of time. What wa

Question 957848: Suppose a car moving at a constant speed travels 96 miles. If the car's speed was twelve miles per hour faster, it could have traveled 120 miles in the same amount of time. What was the car's speed (in miles per hour)? Type in your numerical answer only; do not type any words or letters with your answer.

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the car's actual speed in mi/hr
Let = the car's time in both cases
-------------------
1st case:
(1)
2nd case:
(2)
------------------------
(1)
(2)
By substitution:
(2)
(2)
(2)
(2) hrs
------------------
(1)
(1)
The car's actual speed was 48 mi/hr

RELATED QUESTIONS
Suppose that during a test drive of two cars, one car travels at 324 miles in the same... (answered by josgarithmetic,MathTherapy)

A car travels 100 miles at a certain speed. If the speed was 5 miles faster the trip... (answered by ankor@dixie-net.com)

A car travels at a constant speed of 15m/s. How many miles does the car travel in one... (answered by mananth)

How long will it take for a car to travel 14 miles if it travels at a constant speed of... (answered by josmiceli)

how long will it take a car to travel 14 miles if it travels at a constant speed of 45... (answered by Fombitz)

A car travels 140 miles in 2 hours at constant speed. What was the... (answered by robertb)

If a car travels at 11km, in 0.83 miles per hour, what would the speed... (answered by Alan3354)

For a car moving at a constant speed, the distance traveled varies directly with the time (answered by Alan3354)

For a car moving at a constant speed, the distance traveled varies directly with the time (answered by Boreal)