SOLUTION: How many hours will a car traveling at 45 miles per hour take to catch up with a car travelling at 30 miles per hour if the slower car starts one hour before the faster car?

SOLUTION: How many hours will a car traveling at 45 miles per hour take to catch up with a car travelling at 30 miles per hour if the slower car starts one hour before the faster car?

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Question 336769: How many hours will a car traveling at 45 miles per hour take to catch up with a car travelling at 30 miles per hour if the slower car starts one hour before the faster car?
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
D=RT
D=45T
D=30(T+1)
45T=30(T+1)
45T=30T+30
45T-30T=30
15T=30
T=30/15
T=2 HOURS TO CATCH THE SLOWER CAR.
PROOF:
45*2=30(2+1)
90=30*3
90=90

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