document.write( "Question 178568: A merchant blends tea that sells for $3.45 a pound with tea that sells for $2.15 a pound to produce 80 pounds of a mixture that sells for $2.75 a pound.
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Algebra.Com's Answer #133541 by Mathtut(3670) $\"\"$ $\"About$

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let x and y be the amount of tea that sells fo 3.45 and 2.15 a pound respectively
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\n" ); document.write( "x+y=80....................eq 1
\n" ); document.write( "3.45x+2.15y=2.75(80)......eq 2
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\n" ); document.write( "rewrite eq 1 to x=80-y and plug that value into eq 2
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\n" ); document.write( "3.45(80-y)+2.15y=2.75(80)
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\n" ); document.write( "276-3.45y+2.15y=220
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\n" ); document.write( "-1.3y=56
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\n" ); document.write( " $\"highlight%28y=43.07%29\"$ pounds of $2.15 tea
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\n" ); document.write( " $\"highlight%28x=80-43.07=36.93%29\"$ pounds of $3.45 tea \n" ); document.write( "

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