Posted by geena on Thursday, November 10, 2011 at 12:48am.
a scientist has a 25% acid solution.how many liters of each does the scientist need to make 15L of a solution that is 28%.write a system of equations and solve using any method.

algebra  Steve, Thursday, November 10, 2011 at 5:10am
you need to specify some other concentration. You say "liters of each" but only name the 25% solution.
for example, if he has 31% solution, then adding 7.5L of 25% to 7.5L of 31% will give 15L of 28%.
Answer This Question
Related Questions
 MATH  A scientist needs 80 liters of a 30?% acid solution. He currently has a ...
 Math  A chemistry teacher needs 2.5 liters of a sulfuric acid solution that is ...
 Algebra 2  One hundred liters of a 57.84% acid solution is obtained by mixing a...
 Algebra 2  One hundred liters of a 57.84% acid solution is obtained by mixing a...
 Algebra 116  1. The perimeter of a rectangle is 126 m. The length is 6 m more ...
 Math (Algebra)  A chemistry student needs to make 60 liters of a 30% alcohol ...
 HELP MATH PLEASE  You have two beakers of acid solution. One beaker contains a ...
 Algebra  I can find no solution to this system of equations. Solve the system ...
 Algebra  A chemist has one solution that is 80% acid and a second solution that...
 algebra  What is the solution of the system? Solve the system of equations ...
More Related Questions