The ratio of oil to vinegar in a salad dressing is 8:5.How much oil must blend with 7 liters of vinegar for that recipe?



Answer :

Set it up in a proportion.

8 (oil)/5 (salad dressing) = x/7
cross multiply to get 11.2
8/5=x/7
(8*7)=5x
56=5x
56/5=5x/5
11.2 liters of oil=x