6. Chase and Sara went to the candy store. Chase bought 5 pieces of fudge and 3 pieces of
bubble gum for a total of $5.70. Sara bought 2 pieces of fudge and 10 pieces of bubble gum
for a total of $3.60. Which system of equations could be used to determine the cost of 1
piece of fudge, f, and 1 piece of bubble gum, g?
7. 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, which system of linear equations could be used to determine the price of
each book?
8. The price, e, of an entertainment system at Extreme Electronics is $220 less than twice the
price, u, of the same system at Ultra Electronics. The difference in price between the
system at Extreme Electronics and Ultra Electronics is $175. Which system of linear
equations can be used to determine the price of the system at each store?
9. The perimeter of a rectangular wooden deck is 90 feet. The deck's length, l, is 5 feet less
than 4 times its width, w. Which system of linear equations can be used to determine the
dimensions, in feet, of the wooden deck?
10. Marcos had 15 coins in nickels and quarters. He had 3 more quarters than nickels. He
wrote a system of equations to represent this situation, letting x represent the number of
nickels and y represent the number of quarters. Then he solved the system by graphing.
What is the solution?