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Mathematics 19 Online
OpenStudy (anonymous):

Alex bought six books priced at $8 each. He got a discount of 20% off the total cost. How much did Alex pay for the books? Write your answer up to two decimal places. Am I supposed to change 20% to 0.20 and then multiply ?

OpenStudy (igreen):

Yes, but first find the price of all 6 books.

OpenStudy (igreen):

6 * 8 = ?

OpenStudy (anonymous):

48

OpenStudy (igreen):

Yes, so all 6 books cost $48, now multiply by 0.20

OpenStudy (anonymous):

9.6 or 0.96 ?

OpenStudy (igreen):

9.6 is correct, now subtract that from 48

OpenStudy (anonymous):

38.4

OpenStudy (igreen):

Yep, that's our answer.

OpenStudy (igreen):

$38.40 after the discount

OpenStudy (igreen):

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OpenStudy (anonymous):

thank you !

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