Erika calculated that she would spend $115 on school supplies this year. She actually spent $82.50 on school supplies. What is Erika’s perce

Question

Erika calculated that she would spend $115 on school supplies this year. She actually spent $82.50 on school supplies. What is Erika’s percent of error? (5 points)

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Ngọc Diệp 3 years 2021-07-23T19:07:44+00:00 1 Answers 56 views 0

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  1. Delwyn
    1
    2021-07-23T19:09:40+00:00
    Reply

    Answer:

    Step-by-step explanation:

    Percentage error is calculated by

    Percentage error = (estimate-real)/real*100%=(115-82.5)/82.5*100%=28.26%

    An over-estimate gives a positive error percent, and an underestimate gives a negative error.

    Also, dividing by the real value makes it possible to have more than 100% error.

    For example, if real cost is $50, and estimated cost is $150, then error percent is (150-50)/50*100%=200%!

    C: 39.4%

    Step-by-step explanation:

    The formula to calculate the percent error is given by :-

    Given: The estimated amount = $115

    The actual amount = $ 82.50

    Now,  the percent of error will be given by :-

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