Achef plans to mix 100% vinegar with italian dressing. the italian dressing contains 12% vinegar. the chef wants to make 160 milliliters of a mixture that contains 23% vinegar. how much vinegar and how much italian dressing should she use?

Amount of  vinegar. 100% : 20 milliliters

Amount of  Italian dressing: 140 milliliters

Step-by-step explanation:

Let's call A the amount of  vinegar. 100%

Let's call B the amount of  Italian dressing . 12% vinegar

The resulting mixture should have 23%  vinegar, and 160 milliliters.

Then we know that the total amount of mixture will be:

Then the total amount of pure antifreeze in the mixture will be:

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -1 and add it to the second equation:

               +

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We substitute the value of B into one of the two equations and solve for A.

whats the

6.5

step-by-step explanation:

you said it was in the question

~courtney