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3 March, 08:32

The temperature in anchorage, Alaska was 4 degrees at 2:00 pm. The temperature dropped 2.5 degrees per hour until 9:00 pm. The temperature dropped another 9 degrees by midnight. How much colder was it at midnight than at 2:00 pm?

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  1. 3 March, 08:35
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    It was 26.5 degrees colder at midnight than at 2:00 pm

    Step-by-step explanation:

    We have that:

    At 2:pm, it was 4 degrees.

    The temperature dropped 2.5 degrees per hour until 9:00 pm.

    From 2pm to 9pm, there are 7 hours. 2.5 per hour, it was 4 degrees at 2 pm.

    So at 9 pm the temperature is:

    4 - 2.5*7 = - 13.5

    The temperature dropped another 9 degrees by midnight.

    At midnight, the temperature is - 13.5 - 9 = - 22.5 degrees

    How much colder was it at midnight than at 2:00 pm?

    2pm: 4 degrees

    Midnight: - 22.5 degrees

    How much coldren

    -22.5 - 4 = - 26.5

    It was 26.5 degrees colder at midnight than at 2:00 pm
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