document.write( "Question 485278: A landscaper needs to mix 75% pesticide solution with 30 gals. Of 25% pesticide solution to obtain a 60% pesticide solution. How many gallons of the 75% solution must be used ? \n" ); document.write( "
Algebra.Com's Answer #331915 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! A landscaper needs to mix 75% pesticide solution with 30 gals. Of 25% pesticide solution to obtain a 60% pesticide solution. How many gallons of the 75% solution must be used \n" ); document.write( "*** \n" ); document.write( "let x=gal of 75% solution must be used \n" ); document.write( "x+30=gal of 65% solution \n" ); document.write( ".. \n" ); document.write( "75%*x+25%*30=60%*(x+30) \n" ); document.write( ".75x+.25*30=.6x+.6*30 \n" ); document.write( ".75x+7.5=.6x+18 \n" ); document.write( ".15x=10.5 \n" ); document.write( "x=10.5/.15=70 \n" ); document.write( "ans: \n" ); document.write( "70 gal of 75% solution must be used \n" ); document.write( " |