document.write( "Question 60648: Solve: 17-4x/12=5\r
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document.write( " An 80-pound grass seed mixture is 30% bluegrass seed. How many pounds of seed containing no bluegrass seed (0%) should be added to the seed mixture for a resulting blend that is 20% bluegrass seed?
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Algebra.Com's Answer #41793 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "Get rid of the denominator, mult eq by 12, results: \n" ); document.write( "12(17) - 4x = 12(5) \n" ); document.write( ": \n" ); document.write( "204 - 4x = 60 \n" ); document.write( "-4x = 60 - 204 \n" ); document.write( "-4x = -144 \n" ); document.write( ": \n" ); document.write( "Divide both sides by -4 \n" ); document.write( "x = -144/-4 \n" ); document.write( "x = 36 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "An 80-pound grass seed mixture is 30% bluegrass seed. How many pounds of seed containing no bluegrass seed (0%) should be added to the seed mixture for a resulting blend that is 20% bluegrass seed? \n" ); document.write( ": \n" ); document.write( "Let x = amt of of \"no bluegrass\" seed \n" ); document.write( ": \n" ); document.write( "Write a per cent blue grass equation: \n" ); document.write( ".30(80) + 0(x) = .20(80+x) \n" ); document.write( ": \n" ); document.write( "24 + 0 = 16 + .2x \n" ); document.write( "24 - 16 = .2x \n" ); document.write( "8 = .2x \n" ); document.write( "x = 8/.2 \n" ); document.write( "x = 40 lb of \"no bluegrass\" seed\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |