document.write( "Question 939224: a pharmacist has 700ml of a solution that is 70% active ingredient. how much pure water should she add to the solution to get a solution that is 10% active ingredient? \n" ); document.write( "
Algebra.Com's Answer #572297 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! x = ml of pure water \n" ); document.write( "y = ml of 70% ingredient/water = ml of 30% water/ingredient \n" ); document.write( "z = ml of 10% ingredient/water = ml of 90% water/ingredient \n" ); document.write( "--- \n" ); document.write( "y = 700 \n" ); document.write( "1x + 0.30y = 0.90z \n" ); document.write( "z = x + y \n" ); document.write( "--- \n" ); document.write( "put the system of linear equations into standard form \n" ); document.write( "--- \n" ); document.write( "y = 700 \n" ); document.write( "1x + 0.30y - 0.90z = 0 \n" ); document.write( "x + y - z = 0 \n" ); document.write( "--- \n" ); document.write( "copy and paste the above standard form linear equations in to this solver: \n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "--- \n" ); document.write( "answer: \n" ); document.write( "x = ml of pure water = 4200 \n" ); document.write( "y = 700 \n" ); document.write( "z = 4900 \n" ); document.write( "--- \n" ); document.write( "Free algebra tutoring live chat: \n" ); document.write( "https://sooeet.com/chat.php?gn=algebra \n" ); document.write( "--- \n" ); document.write( "Solve and graph linear equations: \n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve quadratic equations with quadratic formula: \n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables: \n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "--- \n" ); document.write( " |