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)![]() ![]() ![]() You can put this solution on YOUR website! let a = amount of brand A \n" ); document.write( ". \n" ); document.write( "3.95 a + 3.60 *25 = 3.70 (25 +a) \n" ); document.write( ". \n" ); document.write( "3.95a + 90 = 92.50 +3.70 a \n" ); document.write( ". \n" ); document.write( ".25 a = 2.50 \n" ); document.write( ". \n" ); document.write( "a= 10 pounds \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "check,,,3.95 *10 + 90 = 92.5 + 3.70 *10 \n" ); document.write( ". \n" ); document.write( "39.5 +90 = 92.5 + 37.0 \n" ); document.write( ". \n" ); document.write( "129.5 = 129.5,,,,,,,,ok\r \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " |