document.write( "Question 984585: An explosive specialist must make a solution that is 21% Nitro glycerine. He has 7 ml of a 15% solution. How many ml of a 24% solution must he mix with all of the 15% solution to get the desired 21% solution? \n" ); document.write( "
Algebra.Com's Answer #605455 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! An explosive specialist must make a solution that is 21% Nitro glycerine. \n" ); document.write( " He has 7 ml of a 15% solution. \n" ); document.write( " How many ml of a 24% solution must he mix with all of the 15% solution to get the desired 21% solution? \n" ); document.write( ": \n" ); document.write( "let x = amt of 24% solution required \n" ); document.write( ": \n" ); document.write( "write an equation that is the decimal equiv of the percent nitro \n" ); document.write( ".15(7) + .24x = .21(x+7) \n" ); document.write( "1.05 + .24x = .21x + 1.47 \n" ); document.write( ".24x - .21x = 1.47 - 1.05 \n" ); document.write( ".03x = .42 \n" ); document.write( "x = .42/.03 \n" ); document.write( "x = 14 ml of 24% solution required \n" ); document.write( " |