Question

A salad dressing is made by mixing lemon juice and oil in the ratio 5:4

Elanor makes 900ml of the salad dressing
How much lemon juice does she use

Answer 1

To determine the amount of lemon juice Elanor uses in her salad dressing, we calculate the amount of one part of the ratio (100 ml) and multiply it by the number of parts of lemon juice (5), which gives us 500 ml of lemon juice.

Step-by-step explanation:

The question asks how much lemon juice Elanor uses if she makes 900ml of salad dressing with lemon juice and oil in the ratio of 5:4.

First, we need to find the total parts of the ratio. Lemon juice is 5 parts and oil is 4 parts, so together they make 5 + 4 = 9 parts in total.

Now, we can find out how much one part is by dividing the total quantity of the salad dressing (900ml) by the total number of parts:

900 ml ÷ 9 parts = 100 ml per part

Then, to find the amount of lemon juice, we multiply the quantity of one part by the number of lemon juice parts:

100 ml per part x 5 parts = 500 ml of lemon juice.