Ellie uses a 2.50 pounds of potatoes to make mashed potatoes she uses a 110 that as many pounds of butter as a potatoes how many pounds of butter does ellie use

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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the answer is 21%.