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9 September, 21:38

An old cell phone battery would last for 13 hours. The new battery lasts 29 percent longer. How long will the new battery last?

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  1. 10 September, 01:13
    0
    16.77 hours

    Step-by-step explanation:

    the new battery lasts 29 percent longer so you multiply 13 * 1.29 and you get

    16.77 hours

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