document.write( "Question 232849: How much brand A coffee costing 3.95 per pound should be mixed with 25 pounds of brand b coffee worth 3.60 per pound in order to obtain a mixture worth 3.70 per pound? \n" ); document.write( "
Algebra.Com's Answer #171962 by RAY100(1637)\"\" \"About 
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let a = amount of brand A
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\n" ); document.write( "3.95 a + 3.60 *25 = 3.70 (25 +a)
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\n" ); document.write( "3.95a + 90 = 92.50 +3.70 a
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\n" ); document.write( ".25 a = 2.50
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\n" ); document.write( "a= 10 pounds
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\n" ); document.write( "check,,,3.95 *10 + 90 = 92.5 + 3.70 *10
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\n" ); document.write( "39.5 +90 = 92.5 + 37.0
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\n" ); document.write( "129.5 = 129.5,,,,,,,,ok\r
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