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23 August, 04:51

For every 2 hours that Robert spends studying for a math test he spends 3 hours working on English. If he spends 21 hours one month on the math project, how many hours did he probably spend studying fir his English test?

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  1. 23 August, 05:58
    0
    31.5 hours

    Step-by-step explanation:

    2 hours for every 3 hours English so 21 divided by 2 = 10.5 so 3 times 10.5 = 31.5 hours
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