Question

Marcos make his famous salad Jackson by mixing 5 1/4 ounces of olive oil with one and a half ounces of vinegar. How much vinegar should Marco mix with a 28 ounce bottle of olive oil to make his salad dressing? How much salad dressing will he make?

Answer 1

8 ounces of vinegar

36 ounces of dressing

Explanation:

Marco makes his famous salad Jackson by mixing 5 1/4 ounces of olive oil with 1 1/2 ounces of vinegar.

Olive oil Vinegar

5 1/4 1 1/2

28 x

Write a proportion:

`(5(1)/(4))/(28)=(1(1)/(2))/(x)\\ \\5(1)/(4)\cdot x=28\cdot 1(1)/(2)\ [\text{Cross multiply}]\\ \\(21)/(4)x=28\cdot (3)/(2)\\ \\(21 x)/(4)=42\\ \\x=42/ (21)/(4)\\ \\x=42\cdot (4)/(21)\\ \\x=2\cdot 4\\ \\x=8\ ounces`

Marco will make

`28+8=36` ounces of dressing