Exercise 16 Page 165

We want to find the sale price of the sweater. Let's start by calculating the dollar amount of the discount. We can do this by using the percent equation. part = percent * whole We are given that the regular price of the sweater is $ 40, and the discount is 33 %. Let d represent the dollar amount of the discount. d = 33 % * $ 40 Before solving the equation that we got, let's write the percent as a decimal. We can do this by ignoring the percent symbol and moving the decimal point two places to the left. We got that 33 % is equal to 0.33.r d = 33 % * $ 40 [0.3em] ⇓ [0.3em] d = 0.33 * $ 40 Finally, we will solve the equation for d. To keep things simple, let's ignore the dollar symbol for now. We found that d = 13.2 is a solution to the equation. This means that the dollar amount of the discount is $ 13.20. Now we can calculate the sale price of the sweater by subtracting $ 13.20 from the regular price. $ 40 - $ 13.20 = $ 26.80 The sale price of the sweater is $ 26.80.