Question

Ivanna bought 36 books. Ivanna bought 4 times as many books as Kevin. Let n be the number of books that Kevin bought.

(a) Write an equation that relates the number of books that they bought.
Use 4, n, and 36.
=×
(b) Find n.
=n

Answer 1

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Answer 2

(a) 4n = 36

(b) n = 9

Explanation:

(a) Kevin represents the left side, 4n, and Ivanna represents the right side, 36.

(b) Solve the equation by isolating n.

4n = 36 (divide both sides by 4)

n = 9