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23 June, 02:23

When Jonas does his math homework, he spends an average of 4 minutes on each problem. Last night he spent 1.8 hours on his non-math homework, plus he completed 12 math problems. Approximately how much time did Jonas spend in total on all of his homework last night?

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  1. 23 June, 03:45
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    2.6 hours.

    Step-by-step explanation:

    That would be 1.8 hours plus 4 * 12 = 48 minutes.

    48 minutes = 48/60 = 0.8 hours.

    Total is 1.8 + 0.8 = 2.6 hours.
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