document.write( "Question 693569: You have 10lbs of an element which costs $100/lb. You wish to create an alloy with it and a material whose value is $5 a pound. The resulting mix should be valued at $20/pound. Assuming you use all of the expensive stuff, how much of the less expensive material should you use? \n" ); document.write( "
Algebra.Com's Answer #433724 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
This is really a mixture & composition problem.\r
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\n" ); document.write( "\n" ); document.write( "Using g as the number of pounds of the cheaper metal to add,
\n" ); document.write( "and already knowing you want to add it to 10 pounds of the expensive metal and make a result of 20 dollars per pound,\r
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\n" ); document.write( "\n" ); document.write( "\"%2810%2A100%2Bg%2A5%29%2F%2810%2Bg%29=20\"\r
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\n" ); document.write( "\n" ); document.write( "Find g.\r
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\n" ); document.write( "\n" ); document.write( "\"1000%2B5g=20%2810%2Bg%29\"
\n" ); document.write( "\"1000-200=15g\"
\n" ); document.write( "\"g=800%2F15\"
\n" ); document.write( "\"highlight%28g=53%261%2F3%29\" \n" ); document.write( "
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