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The equation 7.50(n+0.2)=189 can be used to model the number of books, n , maggie orders. How many books does maggie order?
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The equation 7.50(n+0.2)=189 can be used to model the number of books, n , maggie orders. How many books does maggie order?

User Brook
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1 Answer

4 votes
n= number of books

7.50(n + 0.2)=189
multiply 7.50 by each term in parentheses

(7.50*n) + (7.50*0.2)= 189
7.50n + 1.5= 189
subtract both sides by 1.5
7.50n= 187.50
divide both sides by 7.50
n= 25

ANSWER: She ordered 25 books.

Hope this helps! :)
User Steve Simitzis
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