investigate and describe fractions, decimals, and percents as ratios;
The student will
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Compute the percent increase or decrease found in a practical situation.
Using 10% as a benchmark, compute 5%, 10%, 15%, or 20% in a practical situation such as tips, tax, and discounts.
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.
Compute a discount or markup and the resulting sale price for one discount or markup.
solve practical problems involving rational numbers, percents, ratios, and proportions; and