determine whether a proportional relationship exists between two quantities; and
Patterns, Functions, and Algebra
The student will
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A proportion is an equation which states that two ratios are equal. When solving a proportion, the ratios may first be written as fractions.
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Simple interest (𝛪) for a number of years is determined by finding the product of the principal (𝑝), the annual rate of interest (𝑟), and the number of years (𝑡) of the loan or investment using the formula 𝛪 = 𝑝𝑟𝑡.