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Question 151153: A machine produces 389 bolts in 34 minutes. At the same rate, how many minutes would it take to produce 238 bolts?
Answer by ptaylor(2198)   (Show Source):
You can put this solution on YOUR website!
Let x=number of minutes it would take the machine to produce 238 bolts
We know that this machine produces bolts at the rate of 389/34 bolts per min and we have specified that in x minutes it will produce 238 bolts. In other words, the rate at which the machine produces bolts (bolts/min) times x minutes has to equal 238 bolts.
So, our equation to solve is:
(389/34)*x=238 multiply each side by 34
389x=8092 divide each side by 389
x=20.8 minutes------ans
Hope this helps----ptaylor
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