Anytime you hear 'one out of. . .' a mathematical proportion is being used. In this lesson, you will learn the definition of a proportion and how proportions relate to equivalent fractions. When you are finished, assess your knowledge with a short practice quiz.
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If you use one cup OS sugar per gallon to make sweet tea no milkHow many calories are in a 8oz glass of sweet tea?   The answer 45 calories; since 1 cup of sugar is equal to 720 calories and there are 16 cups in a gallon I divided 720 by 16 which is 45.