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2 years ago

12

The Taylors have recorded their weekly grocery expenses for the past 12 weeks and determined that the mean weekly expense was $

.82.55. Later Mrs. Taylor discovered that one week's expense of $74 was incorrectly recorded as $47. What is the correct mean?

1 answer:

SVETLANKA909090 [29]2 years ago

4 0

Answer:

$84.80

Step-by-step explanation:

find the difference between accurate price and written price: 74 - 47 = 27

find written total (before Mrs. Taylor found mistake) by undoing the mean calculation: 82.55 x 12 = $990.60

the total expenses is $27 more than what they thought: 990.60 + 27 = 1017.60

divide accurate total by 12 to find mean: 1017.60 / 12 = $84.80

hope this helps :)

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Step-by-step explanation:

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<em>Find the area of two trapezoids</em>

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Part c)

<em>step 1</em>

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<em>step 2</em>

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