Answer:
1 1/2 cups of vinegar.
Explanation:
1 recipe for salad dressing = 1/4 cup of vinegar
Hence,
1 cup salad dressing = 1/4 cup of vinegar
6 cups of dressing = x
Cross Multiply
x = 6 × 1/4 cup
x = 6/4
x = 3/2
x = 1 1/2 cups of vinegar
Hence, Baxter needs 1 1/2 cups of vinegar to make 6 cups of dressing.