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24 September, 10:44

one day, the temperature in Philadelphia was at 21 degrees and the temperature in Detroit was - 7 degrees. How much lower was the temperature in Detroit than in Philadelphia

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  1. 24 September, 10:59
    0
    21 - (-7) = 28

    Step-by-step explanation:

    1. Do same, change, opposite.

    21 - (-7)

    21+7

    =28
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