Glencoe Math: Course 2, Volume 1
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Glencoe Math: Course 2, Volume 1 View details
6. Sales Tax, Tips, and Markup
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Exercise 20 Page 157

Start by calculating the dollar amount of the markup by using the percent equation.

About $ 14.88

Practice makes perfect

We want to find the total cost of the yoga mat. Let's start by calculating the dollar amount of the markup. We can do this by using the percent equation. part = percent * whole We are given that the yoga mat costs $ 8.50 plus 75 % markup. Let m represent the dollar amount of the markup. m = 75 % * $ 8.50Before solving the equation we got, we need to 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.

percent as decimal: 0.75

We got that 75 % is equal to 0.75. m = 75 % * $ 8.50 [0.3em] ⇓ [0.3em] m = 0.75 * $ 8.50 Finally, we will solve the equation for m. For simplicity, we will omit the dollar symbol.

m = 0.75 * 8.50
m = 6.375
m ≈ 6.38

We found that m≈ 6.38 is a solution to the equation. This means that the dollar amount of the markup, rounded to the nearest cent, is about $ 6.38. Now we can calculate the total cost of the yoga mat, which is the regular price of the mat plus the markup. Total cost ≈ $ 8.50 + $ 6.38 = $ 14.88 The total cost of the yoga mat is about $ 14.88.