Question

according to a salad recipe each serving requires 4 teaspoons of vegetable oil and 12 teaspoons of vinegar. if 14 teaspoons of vegetable oil were used how many teaspoons of vinegar should be used

Answer 1

42 teaspoons of vinegar

Explanation:

Given

`x \to vegertable`

`y \to vinegar`

`x : y = 4 :12`

Required

Find y when
`x = 14`

`x : y = 4 :12` implies that:

`14 : y = 4 : 12`

Express as fraction

`(y)/(14) = (12)/(4)`

`(y)/(14) = 3`

Multiply by 3

`y = 14* 3`

`y = 42`