One solution is 10% acid and another is 4% acid how many cubic cm of each should be mixed to obtain 150 cubic cm of a solution that is 6% acid?

Let x cubic cm of 10% acid is mixed with (150-x) cubic cm of 4% solution to obtain 150 cubic cm that is 6% acid .

Therefore the equation is

Combining like terms, we will get

Dividing both sides by 0.06,

50 cubic cm of 10% acid is mixed with

of 4% solution to obtain 150 cubic cm that is 6% acid .

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz