Asked by Taylor
Two cars leave town at the same time and travel in opposite directions. The average rate of speed of one car is 15 miles per hour faster than the average rate of speed of the other car. The cars are 315 miles apart after three hours. Find the average rate of speed of the two cars.
Answers
Answered by
R_scott
let r equal the speed of the slower car ... 2 r + 15 = 315 / 3
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