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1 March, 17:42

2. At a college bookstore, Carla purchased a math textbook and a novel that cost a total of $54, not

including tax. If the price of the math textbook, M, is $8 more than 3 times the price of the novel, N.

a. Write a system of equations to represent this situation, then solve by substitution.

b. How much does the novel cost? How much does a math book cost?

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Answers (1)
  1. 1 March, 19:35
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    the price of the novel : $10.25

    The price of the math book : $43.75

    Step-by-step explanation:

    Let M represent math book and N novel

    the price of the math textbook, is $8 more than 3 times the price of the novel.

    M + N = $54 and M = 3N + 8

    we can write 3N + 8 instead of M

    N + 3N + 8 = $54 add the like terms

    4N = $46

    N = $10.25 this is the price of the novel and the price of the math book is $54 - $10.25 = $43.75
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