#### Answer

You need 400 ounces of the 20% alloy.

#### Work Step by Step

$0.2x+0.5*200=0.3*(x+200)$
$0.2x+100=0.3x+60$
$40=0.1x$
$x=400$
You need 400 ounces of the 20% alloy

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

You need 400 ounces of the 20% alloy.

$0.2x+0.5*200=0.3*(x+200)$
$0.2x+100=0.3x+60$
$40=0.1x$
$x=400$
You need 400 ounces of the 20% alloy

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