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Working alone at its own constant rate, a machine seals k [#permalink]
28 May 2006, 19:52
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1.Working alone at its own constant rate, a machine seals k cartons in 8hrs, and working alone at its own constant rate, a second machine seals k cartons in 4hrs. If the two machines, each working at its own constant rate and for the same period of time, together sealed a certain number of cartons, what percent of the cartons were sealed by the machine working at the faster rate?
2.A certain business produced x rakes each month from November through February and shipped x/2 rakes at the beginning of each month from March through October. The business paid no storage costs for the rakes from November through February, but it paid storage cost of $0.10 per rake each month from March through October for the rakes that had not been shipped. In terms of x, what was the total storage cost, in dollars, that the business paid for the rakes fro the 12 months from November through October?