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27 November, 16:42

A cell phone and phone case cost $110 in total. The cell phone costs $100 more

than the phone case. How much was the cell phone?

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Answers (1)
  1. 27 November, 16:51
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    Step-by-step explanation:

    p + c = 110

    p = c + 100

    c + 100 + c = 110

    2c + 100 = 110

    2c = 110 - 100

    2c = 10

    c = 10/2

    c = 5 ... cost of the phone case

    p = c + 100

    p = 5 + 100

    p = 105 <== = cost of the phone
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