document.write( "Question 1044953: How many lb of copper which costs $2/lb must be added to 3 lb of tin which costs $8/lb to make bronze which costs $4/lb? \n" ); document.write( "

Algebra.Com's Answer #660368 by ikleyn(52797) $\"\"$ $\"About$

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\n" ); document.write( "How many lb of copper which costs $2/lb must be added to 3 lb of tin which costs $8/lb to make bronze which costs $4/lb?
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document.write( "Let x be the amount of copper and y be an amount of tin.\r\n" );
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document.write( "Then the price of the bronze will be\r\n" );
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document.write( "Since it should be $4/lb, it gives you an equation\r\n" );
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document.write( " = 4.   (1)\r\n" );
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document.write( "It is an equation to solve for x.\r\n" );
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document.write( "So, multiply the equation by (x+3) to rid of the denominator. You will get\r\n" );
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document.write( "2x + 24 = 4x + 12,  or\r\n" );
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document.write( "2x = 24 - 12,  or\r\n" );
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document.write( "2x = 12,  or\r\n" );
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document.write( "x =  = 6.\r\n" );
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document.write( "So, you need to mix 6 lbs of copper to get your alloy.\r\n" );
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\n" ); document.write( "\n" ); document.write( "For other solved problem on mixtures see the lessons \r
\n" ); document.write( "\n" ); document.write( "    - Mixture problems\r
\n" ); document.write( "\n" ); document.write( "    - More Mixture problems\r
\n" ); document.write( "\n" ); document.write( "    - Solving typical word problems on mixtures for solutions\r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for antifreeze solutions \r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for dry substances like coffee beans, nuts, cashew and peanuts\r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for dry substances like candies, dried fruits\r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for dry substances like soil and sand\r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for alloys \r
\n" ); document.write( "\n" ); document.write( "    - Typical word problems on mixtures from the archive\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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