document.write( "Question 1186327: Use two equations in two variables to solve the problem.\r
\n" ); document.write( "\n" ); document.write( "A coffee supply store waits until the orders for its special coffee blend reach 100 pounds before making up a batch. Coffee selling for $7.40 a pound is blended with coffee selling for $3.65 a pound to make a product that sells for $5.15 a pound. How much of each type of coffee should be used to make the blend that will fill the orders?
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Algebra.Com's Answer #817216 by josgarithmetic(39627)\"\" \"About 
You can put this solution on YOUR website!
100 pounds mixture, blend price $5.15 per pound
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\n" ); document.write( "$3.65 per pound\r
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\n" ); document.write( "\n" ); document.write( "v, how much of the $7.4 per pound coffee
\n" ); document.write( "u, how much of the $3.65 per pound coffee (because directions say, \"use two equations in two unknowns\".)
\n" ); document.write( "100-v, how much the $3.65 per pound coffee\r
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\n" ); document.write( "\n" ); document.write( "\"system%28u%2Bv=100%2C3.65u%2B7.4v=5.15%2A100%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"3.65%28100-v%29%2B7.4v=515\"\r
\n" ); document.write( "\n" ); document.write( "\"%287.4-3.65%29v%2B365=515\"\r
\n" ); document.write( "\n" ); document.write( "\"v=%28515-365%29%2F%287.4-3.65%29\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28v=40%29\"
\n" ); document.write( "\"highlight%28u=60%29\"\r
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\n" ); document.write( "For any example of this type, https://www.algebra.com/my/mixture-price-two-part-both-parts-unknown.lesson?content_action=show_dev
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