Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 4 - Decimals - 4.4 Multiplying Decimal Numbers - 4.4 Exercises - Page 295: 54

Answer

$$31.63$$

Work Step by Step

We find the amount she pays from the monthly payments: $$ =55.97 \times 12 \\ =671.74$$ Since should could have paid 639.99 in a one lump sum payment, the amount she could have saved is: $$ =671.44-639.99 \\ =31.63$$
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