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8 May, 19:44

Nicolas buys 3 books. He gives the cashier $30 and gets $3 back. If each book costs the same amount, how much money dip each book cost? Explain

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  1. 8 May, 23:33
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    each book costs $9

    Step-by-step explanation:

    Nicolas gave the cashier $30 and she gave him $3 back, apparently 3books equals $30-$3=$27

    so since we do not know the price of each we say 1 book equals x for 3books is 3X.

    since since 3books=27 we say 3X=27.

    divide through by 3 to give us 9.

    each book equals $9
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