Jackson bought 5 boxes full of vegetable oil. each box weighs 2 pounds. how many bottles of vegetable oil are in each box.

First you need to know what one bottle of oil weights. Then you would keep adding the weight of the oil bottles together till they add up to two.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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