By rounding one significant figure estimate this 310.31 x 7.94 / 317.39 x 0.82

Question

By rounding one significant figure estimate this 310.31 x 7.94 / 317.39 x 0.82

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Bella 3 weeks 2021-09-22T11:07:34+00:00 1 Answer 0

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    0
    2021-09-22T11:08:52+00:00

    9514 1404 393

    Answer:

      6.4

    Step-by-step explanation:

    After rounding, you have …

      300 × 8 / 300 × 0.8

      = 2400/300 × 0.8

      = 8 × 0.8

      = 6.4

    _____

    The Order of Operations requires we consider the 0.82 factor to be in the numerator. If you want it to be in the denominator, the denominator must be enclosed in parentheses.

    The actual value is about 6.3656 when rounded to 5 sf, so this isn’t a bad estimate.

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