# Salad dressing P is made up of 30% vinegar and 70% oil, and salad dressing Q contains 10% vinegar ...

Salad dressing P is made up of 30% vinegar and 70% oil, and salad dressing Q contains 10% vinegar and 90% oil. If the two dressings are combined to produce a salad dressing that is 22% vinegar, dressing P comprises what percentage of the new dressing?

## Answer/Solution

60%

### Steps/Work

Let x be the percentage of dressing P in the new dressing.

0.3x + 0.1(1-x) = 0.22

0.2x = 0.12

x = 0.6 = 60%

The answer is D.

0.3x + 0.1(1-x) = 0.22

0.2x = 0.12

x = 0.6 = 60%

The answer is D.