In a chemistry lab, you have 2 vinegars. one is 5% acetic acid, and one is 6.5% acetic acid. you want to make 200 ml of a vinegar with 6% acetic acid. how many milliliters of each vinegar do you need to mix together? model this situation with a system of equations and solve.

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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