document.write( "Question 125529This question is from textbook Algebra Structure and Method
\n" ); document.write( ": I have been struggling with this problem for a while now and I was wondering if anyone could help me? I would deeply appreciate it!!! Please and Thank You!!!\r
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\n" ); document.write( "\n" ); document.write( " Solving Problems Involving Inequalities\r
\n" ); document.write( "\n" ); document.write( "solve.\r
\n" ); document.write( "\n" ); document.write( "At least how many grams of copper must be alloyed with 387g of pure silver to produce an alloy that is no more than 90% pure silver?
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Algebra.Com's Answer #91971 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let \"c\" = grams of copper to be added
\n" ); document.write( "(grams of silver) / (grams of copper and silver) < = .90
\n" ); document.write( "\"387+%2F+%28c+%2B+387%29+%3C=+.9\"
\n" ); document.write( "\"387+%3C=+.9%28c+%2B+387%29\"
\n" ); document.write( "\"387+%3C=+.9c+%2B+348.3\"
\n" ); document.write( "\".9c+%3E=+387+-+348.3\"
\n" ); document.write( "\".9c+%3E=+38.7\"
\n" ); document.write( "\"c+%3E=+43\"g
\n" ); document.write( "At least 43 grams of copper must be added
\n" ); document.write( "check:
\n" ); document.write( "\"387+%2F+%28c+%2B+387%29+%3C=+.9\"
\n" ); document.write( "\"387+%2F+%2843+%2B+387%29+%3C=+.9\"
\n" ); document.write( "\"387+%2F+430+%3C=+.9\"
\n" ); document.write( "\".9+%3C=+.9\"
\n" ); document.write( "OK
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