document.write( "Question 627311: how much of an alloy that is 30% copper should be mixed with 200 ounces of an alloy that is 90% copper in order to get an alloy that is 70% copper \n" ); document.write( "

Algebra.Com's Answer #394845 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "how much of an alloy that is 30% copper should be mixed with 200oz of an alloy that is 90% copper 
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document.write( "in order to get an alloy that is 70% copper
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document.write( "    copper + copper = copper
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document.write( "                   100oz = x\r
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document.write( "Note:  30oz + 180oz =  210oz                      
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document.write( "Set Up on ALL mixture problems is to have the same amount of the key ingredient on both sides of the EQ \n" );
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