Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 5 - Ratio and Proportion - 5.5 Solving Application Problems with Proportions - 5.5 Exercises - Page 363: 7

Answer

42 pounds of grass seed are needed to cover 4900 sq ft.

Work Step by Step

$\frac{3\ lb}{350\ sq ft} = \frac{x}{4900\ sq ft}$ $350x = 3\times4900$ $\frac{350x}{350} = \frac{14700}{350}$ $x = 42$
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