posted by David Nipp

At a college bookstore, Carla purchased a math textbook and a novel thjat cost a total of \$54, not including tax. If the price if the math textbook, m, is \$8 more than 3 times the price of the novel, n, write a system of linear equations that could be used to determine the price of each book?

1. Jen

m + n = 54
3n+8=m
plug in 3n+8 for m in the first equation
3n+8+n=54
4n+8=54
4n=46
n= \$11.50 which means m= \$42.50

2. lolo

n=\$11.50
m=\$42.50

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