Answer
5 qts of paint are needed.
Work Step by Step
$\frac{3\ qt}{270\ sq\ ft} = \frac{x}{350\ sq\ ft +100\ sq\ ft}$
$270x = 3(350+100)$
$270x = 3(450)$
$270x = 1350$
$\frac{270x}{270} = \frac{1350}{270}$
$x = 5$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 5 - Ratio and Proportion - 5.5 Solving Application Problems with Proportions - 5.5 Exercises - Page 364: 13
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