Kelly ate 3 apples. This represents 20% of a bag of apples. How many apples were originally in the bag?​

15

Step-by-step explanation:

If 3 apples is 20% of the bag all you have to do is multiply both sides by 5 (20%x5 and 3x5) to get 100% of the bag having 15 apples.

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- Valenteer

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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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