SOLUTION: a field can be plowed by 8 machines in 6 hours.If 3 machines are broken, how many hours will it take to plow the field?
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Question 903832: a field can be plowed by 8 machines in 6 hours.If 3 machines are broken, how many hours will it take to plow the field?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
RT=1 for rate of work, time to do the work, the work for 1 job.
Find t.
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