Mathematics
Mathematics, 29.08.2019 00:50, cascyrio2002

*machine x can produce 1,200 bolts in 4 hours and machine y can produce 1,000 bolts in 5 hours. working together at these constant rates, how long will it take it them to produce 1,000 bolts

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*machine x can produce 1,200 bolts in 4 hours and machine y can produce 1,000 bolts in 5 hours. work...

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