SOLUTION: According to a salad recipe, each serving requires 3 teaspoons of vegetable oil and 12 teaspoons of vinegar. If 17 teaspoons of vegetable oil were used, how many teaspoons of vin

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Question 1186828: According to a salad recipe, each serving requires 3 teaspoons of vegetable oil
and 12 teaspoons of vinegar. If 17 teaspoons of vegetable oil were used, how many
teaspoons of vinegar should be used? How do I solve this?

Found 2 solutions by josgarithmetic, Edwin McCravy:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Recipe ratio:
3 tspns Vegetable Oil : 12 tspns Vinegar

The intended mixture,
17 tspns Vegetable Oil : y tspns Vinegar

y%2F17=12%2F3
y%2F17=4

highlight%28y=68%29

Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
According to a salad recipe, each serving requires 3 teaspoons of vegetable oil and 12 teaspoons of vinegar. If 17 teaspoons of vegetable oil were used, how
many teaspoons of vinegar should be used? How do I solve this? 
17 teaspoons of vegetable oil compares to 3 teaspoons of vegetable oil as

x  teaspoons of vinegar compares to 12 teaspoons of vinegar. 


17 is to 3 as x is to 12

"Is to" means "over" and "as" means equal

17%2F3%22%22=%22%22x%2F12

Cross multiply

17%2A12%22%22=%22%223%2Ax

204%22%22=%22%223x

Divide both sides by 3

204%2F3%22%22=%22%223x%2F3

68%22%22=%22%22x

So the answer is that you would use 68 teaspoons.

Edwin