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Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?
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and for the third time 25 minutes
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Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?
Top answer:
3/5 * 5/3 = 1 entire task :) 15 * 5/3 = 25 minutes
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Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?
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still 25 minutes
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Please help me, I'm having a hard time setting up this problem.
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Top answer:
job done = rate x time George's rate = job/2 Joyce's rate = job/3 combined rate = job/2 + job/3 =
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Please help me, I'm having a hard time setting up this problem.
George can plant a garden in 2 hours, and it takes Joyce 3 hours.
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Well, if you didn't like Reiny's solution, how about this? George can plant 1/120 garden in one
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a radioactive material is undergoin nuclear decay. After 40 minutes, 25% of the sample remains. What is the half life of the
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