Madison spent $1,192 on 11 textbooks. She calculated the average cost of a textbook to be $10.84. Is this correct

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25-09-2018
Mathematics

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Madison spent $1,192 on 11 textbooks. She calculated the average cost of a textbook to be $10.84. Is this correct

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Аноним Аноним · Answer 1 · 2018-09-25T02:21:42+02:00

Аноним Аноним

25-09-2018

To find the average cost of 11 textbooks, take the total amount Madison spent ($1,192) and divide this amount by the total number of textbooks she bought (11 textbooks).

$1,192 / 11 textbooks = ~108.4; this is definitely way off from Madison's calculation, so she is incorrect. It looks like Madison moved the decimal point to the left once.

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