Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 1 - Whole Numbers - Review Exercises: 124

Answer

Estimate: 1400; Exact: 1139

Work Step by Step

The total monthly collections is found by adding the collections from the daily customers (amount x price per month) and the collections from the weekend customers (amount x price per month). To estimate, we round 62 to 60, 21 to 20, 16 to 20, and 7 to 10. Then we calculate the estimated total monthly collections using the rounded numbers: 60*20 + 20*10 = 1200 + 200 = 1400 To find the exact total monthly collections, we calculate using the actual numbers: 62*16 + 21*7 = 1139.
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