document.write( "Question 716041: A merchant has coffee worth $20 a pound that she wishes to mix 50 pounds of coffee worth $80 a pound to get a mixture that is worth $70 a pound. How man pounds of the $20 coffee should be used? \n" ); document.write( "
Algebra.Com's Answer #439696 by josgarithmetic(39617)\"\" \"About 
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money/mixture=price\r
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\n" ); document.write( "\n" ); document.write( "p = pounds of the $20/pound coffee to use, unknown\r
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\n" ); document.write( "\n" ); document.write( "\"%2820%2Ap%2B80%2A50%29%2F%2850%2Bp%29=70\", find p.
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