One solution is 10% acid and another 4% acid. How many cubic centimeters (cc) of each should be mixed to obtain 150 cc solution that is 6% acid?
asked Jul 9 in Word Problem Answers by wierdokidmoni (120 points)

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

Let A=amount of 10% acid and B=amount of 4% acid. So A+B=150cc. B=150-A.

Also, 0.1A+0.04B=0.06×150=9cc, which we can write as:

0.1A+0.04(150-A)=9.

0.1A+6-0.04A=9, 0.06A=3, so A=3/0.06=300/6=50cc making B=150-50=100cc.

Therefore we need 50cc of the 10% solution and 100cc of the 4% solution. (There is 5cc of acid in the 10% solution and 4cc in the 4% solution, making 9cc altogether, which is 6% of the mixture.)

 

answered Jul 9 by Rod Top Rated User (570,500 points)

No related questions found

Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
81,478 questions
85,655 answers
2,171 comments
69,137 users