Mathematics, 21.11.2019 05:31 jtgarner402

Sofia can type the work in 10 hours. nova can do it in 15 hours. they work together for 4 hours, then sofia and nova finish the job. how long did it take to do the entire job?

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Sofia can type the work in 10 hours. nova can do it in 15 hours. they work together for 4 hours, the...

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