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22 February, 18:06

Jeff has ten packages that he wants to mail. Nine identical packages that weigh 2 7/8 pounds each. A tenth package weighs two times as much of one the nine packages. How many ponds do all packages weigh?

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  1. 22 February, 21:32
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    31 5/8 pounds

    Step-by-step explanation:

    The total weight is ...

    9 (2 7/8 lb) + 2 (2 7/8 lb) = (2 7/8 lb) (9 + 1) = (23/8 lb) (11) = 253/8 lb

    = 31 5/8 lb

    The total of package weights is 31 5/8 pounds.
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