Please help with math word problem

Question

A chef is using a mixture of two brands of Italian dressing. The first brand contains
5%
vinegar, and the second brand contains
10%
vinegar. The chef wants to make
360
milliliters of a dressing that is
6%
vinegar. How much of each brand should she use?

Answer 1

So this is a concentration question where the standard form can be seen as:

 

(amount of solution X)*(concentration of solution X) + (amount of solution Y)*(concentration of solution Y) = (total amount of solution)*(concentration of total solution)

 

For this problem, we know the following:

 - concentration of the first solution

 - concentration of the second solution

 - total amount of solution

 

See where this leads you with this problem.  Good Luck!