Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 8 - Personal Finance - 8.6 Cars - Exercise Set 8.6: 16

Answer

Over six years, the total expense for a Mercury Grand Marquis is $\$15,000$ more than the total expense of a Honda Accord.

Work Step by Step

We can find the total annual expense for a Mercury Grand Marquis. $expense = (\$0.65~/mi)(25,000~mi) = \$16,250$ We can find the expense for a Mercury Grand Marquis over six years. $expense = (\$16,250/yr)(6~yr) = \$97,500$ We can find the total annual expense for a Honda Accord. $expense = (\$0.55~/mi)(25,000~mi) = \$13,750$ We can find the expense for a Honda Accord over six years. $expense = (\$13,750~/yr)(6~yr) = \$82,500$ We can find the difference in the expense for the two cars over six years. $\$97,500 - \$82,500 = \$15,000$ Over six years, the total expense for a Mercury Grand Marquis is $\$15,000$ more than the total expense of a Honda Accord.
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