Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 4 - Decimals - Review Exercises - Page 322: 38

Answer

Estimated: Dollar 3 Exact: Dollar 4.14

Work Step by Step

Here Joy spent dollars 1.59 for toothpaste, 5.33 for vitamins, 18.94 for toaster. To find balance we need to find the difference i.e. subtraction between amount paid and total expence. First lets find estimate with front end rounding. 30 (rounds to) 30 1.59 (rounds to) 2 5.33 (rounds to) 5 18.94 (rounds to) 20 Total Expense is 2+5+20=27 Estimated dollars joey got back from clerk = 30 - 27 = 3 Now let's find the final exact answer First find the total payment 1.59 +5.33 +18.94 ______ 25.86 Now lets find the exact dollars joey got back from clerk = 30.00 - 25.86 ______ 4.14
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.