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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

Respuesta :

abubakargideon444

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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