Question 1012827: Leah travels 270 km deb travels 250kmin the same time Leah drives 4km/h faster what sped are they each travelling at Answer by ikleyn(53763) (Show Source):
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Leah travels 270 km. Deb travels 250 km in the same time. Leah drives 4 km/h faster. what are they each travelling at ?
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Let x be Leah' speed in .
Then Deb' speed is (x-4) .
The equation is
= .
To solve it, multiply both sides by x*(x-4). You will get
250x = 270*(x-4),
250x = 270x - 1080,
20x = 1080,
x = = 54 .
Answer. Leah' speed was 54 . Deb' speed was 50 .
