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OpenStudy (anonymous):
Maria can stuff envelopes twice as fast as her friend James. Together they can stuff 6750 envelopes in 4.5 hours. How long would it take each of them working alone? Show all work.
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OpenStudy (anonymous):
Anybody?
OpenStudy (sparrow2):
one sec
OpenStudy (anonymous):
rate of James is j rate of maria is 2j their rates together is 3j and 3j * 4.5 = 6750 j = 500 envelops/hr maria's rate is 1000 envelops/hr
OpenStudy (anonymous):
So Maria would take 7 hours, and James would be twice as much.
OpenStudy (sparrow2):
no first reply is wrong
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OpenStudy (sparrow2):
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