## Basic College Mathematics (9th Edition)

Published by Pearson

# Chapter 1 - Whole Numbers - 1.10 Solving Application Problems - 1.10 Exercises: 22

#### Answer

Estimate: $1300; Exact:$1118

#### Work Step by Step

To estimate, we round 2874 to 3000, 308 to 300, 580 to 600, and 778 to 800. We find an estimate of his spending by adding 300 + 600 + 800 = 1700, so an estimate of the amount remaining in his account is 3000 - 1700 = 1300. To find his exact spending, we add 308 + 580 + 778 = 1666, so the exact amount remaining in his account is 2784 - 1666 = 1118,

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