Asked by paul stylo
a lorry and a sports car are traveling a distance of of 21kmh. the difference in there time was 70minutes if the speed of the sports car was 6 times that of a lorry,calculate the speed of each
Answers
Answered by
oobleck
time = distance/speed, so if the lorry's speed is x, then
21/x = 70/60 + 21/6x
Now just solve for x, and 6x
21/x = 70/60 + 21/6x
Now just solve for x, and 6x
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