algebra word problem

User Generated

qransy

Mathematics

Description

A chemist wishes to make 2 liters of a 6% acid solution by mixing a 9% acid solution and a 4% acid solution. How many liters of each solution should the chemist use?

User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

Let x be liters of 9% acid solution required. So 2-x is liters of 4% acid solution required.

Therefore the equation is: x times 9 + (2-x) times  4 = 2 times 6

So 9x +8-4x = 12

5x + 8 = 12

Take away 8 from both sides.

5x+8-8 =12-8

5x= 4

x=4/5 

Therefore 4/5 liter or 0.8 liter of 9% solution and 1 1/5 liter or 1.2 liter of 4% solution required


Anonymous
I was having a hard time with this subject, and this was a great help.

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Related Tags