guardangel29
Answered

A car leaves Rockford, Illinois, at the rate of 75 mph, bound for Madison, Wisconsin. At the same time, a truck leaves Madison at the rate of 45 mph, bound for Rockford. If the cities are 72 miles apart, how long will it take for the car and the truck to meet?

Answer :

HomertheGenius
d 1 + d 2 = 72 miles
v 1 * t + v 2 * t = 72
75 t + 45 t = 72
120 t = 72
t = 72  : 120
t = 0.6 hours = 0.6 * 60 = 36 minutes
Answer: The car and the truck will meet after 36 minutes. 

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