Asked by chris
Maria bicycles 5 km/h faster than Robert. In the same time it takes Robert to bicycle 60 km, Maria can bicycle 75km. How fast does each bicyclist travel?
Answers
Answered by
Damon
m = 5 + r
t = 60/r = 75/m or 60 m = 75 r
so
60(5+r) = 75 r
300 + 60 r = 75 r
15 r = 300
r = 20
then
m = 25
t = 60/r = 75/m or 60 m = 75 r
so
60(5+r) = 75 r
300 + 60 r = 75 r
15 r = 300
r = 20
then
m = 25
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