document.write( "Question 577970: A pound of tin is worth $2 more than a pound of copper. Eight pounds of tin are mixed with 2 pounds of copper to make bronze that sells for $4.50 per pound. How much is a pound of tin worth? \n" ); document.write( "
Algebra.Com's Answer #370560 by ankor@dixie-net.com(22740)\"\" \"About 
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A pound of tin is worth $2 more than a pound of copper.
\n" ); document.write( " Eight pounds of tin are mixed with 2 pounds of copper to make bronze that sells for $4.50 per pound.
\n" ); document.write( " How much is a pound of tin worth?
\n" ); document.write( ":
\n" ); document.write( "let t = price of a l lb of tin
\n" ); document.write( "then
\n" ); document.write( "(t-2) = price of 1 lb of copper
\n" ); document.write( ":
\n" ); document.write( "Resulting amt = 10 lb
\n" ); document.write( ":
\n" ); document.write( "8t + 2(t-2) = 4.5(10)
\n" ); document.write( "8t + 2t - 4 = 45
\n" ); document.write( "10t = 45 + 4
\n" ); document.write( "10t = 49
\n" ); document.write( "t = 49/10
\n" ); document.write( "t = $4.90 price of a lb of tin
\n" ); document.write( ";
\n" ); document.write( ":
\n" ); document.write( "Check this )copper is worth 2.90 a lb
\n" ); document.write( "4.90(8) + 2.90(2) = 4.5(10)
\n" ); document.write( "39.20 + 5.80 = 45; confirms our solution of t = 4.90 \n" ); document.write( "
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