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Define a variable, write an equation and SOLVE the equation. Sandy had 189 dollars to spend on 9 books. After buying them she had 18 dollars. How much did each book cost?

Define a variable, write an equation and SOLVE the equation. Sandy had 189 dollars to spend on 9 books. After buying them she had 18 dollars. How much did each book cost?
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1 vote
Define a variable, write an equation and SOLVE the equation. Sandy had

189 dollars to spend on 9 books. After buying them she had 18 dollars. How
much did each book cost?

asked
User Rolan
by
9.1k points

2 Answers

14 votes
21 dollars each because 189 divided by 9 is 21
answered
User Gera Zenobi
by
9.0k points
6 votes
the answer is 21 because 189 divided by 9 is 21
answered
User Anand Kore
by
7.8k points
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