Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 2 - Section 2.4 - An Introduction to Problem Solving - Exercise Set: 55

Answer

The Gobi Desert is 500,000 square miles and the Sahara Desert is 3,500,000 square miles wide.

Work Step by Step

$s=7g$ $s+g=4000000$ $7g+g=4000000 \lt=\gt 8g =4000000 \lt=\gt g =500,000 =\gt s= 3,500,000$
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