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A salad dressing is made by mixing lemon juice and vinegar in the ratio [tex]$4:3$[/tex].

Vicky makes 700 ml of the salad dressing. How much lemon juice does she use?

Answer :

To find out how much lemon juice Vicky uses in her salad dressing, follow these steps:

1. Understand the Ratio:
The salad dressing consists of lemon juice and vinegar in the ratio of 4:3. This means for every 4 parts of lemon juice, there are 3 parts of vinegar.

2. Calculate the Total Parts:
Add the parts of the ratio together to determine the total number of parts.
[tex]\[
4 \text{ (lemon juice)} + 3 \text{ (vinegar)} = 7 \text{ parts}
\][/tex]

3. Find the Amount of Lemon Juice:
Vicky makes a total of 700 ml of salad dressing. To find the volume of lemon juice, calculate the fraction of lemon juice in the mixture:
[tex]\[
\text{Fraction of lemon juice} = \frac{4 \text{ parts}}{7 \text{ total parts}}
\][/tex]

4. Calculate the Volume of Lemon Juice:
Multiply the total volume of salad dressing by the fraction representing lemon juice:
[tex]\[
\text{Volume of lemon juice} = 700 \, \text{ml} \times \frac{4}{7}
\][/tex]

5. Get the Result:
Performing the calculation gives:
[tex]\[
\text{Volume of lemon juice} = 400 \, \text{ml}
\][/tex]

Therefore, Vicky uses 400 ml of lemon juice in her salad dressing.

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Rewritten by : Barada