SOLUTION: Two cars are traveling 225 miles apart. They start traveling torwards each other at the same time, but one car is going 5 miles an hour faster than the other. If it took 3 hours fo
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Question 221824: Two cars are traveling 225 miles apart. They start traveling torwards each other at the same time, but one car is going 5 miles an hour faster than the other. If it took 3 hours for the cars to pass each other, what was each car's rate?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Two cars are traveling 225 miles apart. They start traveling towards each other at the same time, but one car is going 5 miles an hour faster than the other. If it took 3 hours for the cars to pass each other, what was each car's rate?
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1st car DATA:
time = 3 hrs ; rate = x mph ; distance = t*r = 3x miles
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2nd car DATA:
time = 3 hrs ; rate = x+5 mph ; distance = t*r = 3(x+5) miles
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Equation:
distance + distance = 225
3x + 3(x+5) = 225
6x + 15 = 225
6x = 210
x = 35 mph (rate of car one)
x+5=40 mph (rate of car two)
=============================
Cheers,
Stan H.
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