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1 September, 16:10

The temperature was - 20.5°F at 5 A. M. and rose 5 degrees per hour for the next 5 hours. Melissa says the temperature at 10 A. M. was - 5.5°F. Which statement identifies Melissa's error and the correct answer?

A. Melissa multiplied incorrectly. The correct answer is - 0.5°F.

B. Melissa multiplied incorrectly. The correct answer is 9.5°F.

C. Melissa added incorrectly. The correct answer is 4.5°F.

D. Melissa added incorrectly. The correct answer is 5.5°F.

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Answers (1)
  1. 1 September, 16:20
    0
    from 5 am to 10 am is 5 hours.

    The temperature rose 5 degrees per hour.

    Multiply the rise per hour by the number of hours:

    5 x 5 = 25 degrees.

    Now add that amount to the original temperature:

    -20.5 + 25 = 4.5 degrees.

    The answer is:

    C. Melissa added incorrectly. The correct answer is 4.5°F
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