SOLUTION: a wheel made 140 revolutions at 39 2/3 revolution a minute, how many minutes did it rotate
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Question 755170: a wheel made 140 revolutions at 39 2/3 revolution a minute, how many minutes did it rotate
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Try a more general approach just to understand.
q revolutions at p revolutionsPerMinute.
if p is a rate, revolutions per minute, and x is a time, minutes, then you may have and you treat this as any other "uniform rates" problem.
Now you want to solve for x which is the amount of minutes. You have the rate and you have the amount; you have p and you have q; but you want to find x.
________about 3.53 minutes.
... or
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