Chapter 4 - Proportions, Percents, and Solving Inequalities - Chapter 4 Review Problem Set - Page 183: 27

The answer is 45%

Let X be the number we are looking for. What percent of 80 means X $\times$ 80. So, this question translates to: 36 = X $\times$ 80 Divide both sides by 80. X = 0.45 To turn 0.45 into a percentage, we multiply it by 100%. So, 0.45 × 100% = 45%