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aliya0001 [1]
3 years ago
13

To make a salad dressing you mix vinegar and olive oil in the ratio 2:5 how much olive oil is needed with 20 ml of vinegar

Mathematics
1 answer:
eduard3 years ago
3 0

Answer:

Step-by-step explanation:

Set this up as a proportion with the ratios being

\frac{vinegar}{oil}  If there is a 2:5 ratio of vinegar to oil, that ratio looks like this:

\frac{v}{o}:\frac{2}{5} and if we are looking for how much oil, x, is needed for 20 ml of vinegar, then that ratio completes the proportion:

\frac{v}{o}:\frac{2}{5}=\frac{20}{x} and cross multiply.

2x = 100 so

x = 50 ml of oil

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