Asked by dennyelle
Aasiah is riding her tricycle up and down the block. It takes her 5 minutes to ride to the end of the block, against the wind, but only 3 minutes to ride back. If it is 300m to the end of the block, how fast would she go with no wind?\
please help!!
please help!!
Answers
Answered by
oobleck
Let
x = her speed with no wind
w = wind speed
Then, since distance = speed * time,
5(x-w) = 300
3(x+w) = 300
Or, dividing by 5 and 3,
x-w = 60
x+w = 100
x = 80 m/min
x = her speed with no wind
w = wind speed
Then, since distance = speed * time,
5(x-w) = 300
3(x+w) = 300
Or, dividing by 5 and 3,
x-w = 60
x+w = 100
x = 80 m/min
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