<p>Lesson: The Percent Proportion Trail 7.RP3</p><p>Guided Notes - How to Calculate With Percents The Percent Equation  Use the proportion to solve percent problems. o a = the part o p = the percent o w= the whole  Substitute two values you already know into the proportion. Then use algebra to solve for the unknown value.</p><p>Examples Solution What number is 38% of 325?</p><p>40 is what percent of 180?</p><p>What percent is 28 of 40? </p><p>Guided Practice (Try these on your own using) A. What number is 20% of 625? B. 12 is what percent of 30? C. What percent of 50 is 20? Percents Trail - Teacher Key</p><p>What percent of</p><p># 1</p><p>65 is 13? $4 is what</p><p># 2</p><p> percent of $50?</p><p>What number is</p><p># 3</p><p>35% of 22? 14% of 81 is</p><p># 4</p><p> what number?</p><p>13 is 26% of</p><p># 5</p><p> what number? 55 is 40% of</p><p># 6</p><p> what number?</p><p>What percent of</p><p># 7</p><p>45 is 72? # 8 1% of what</p><p> number is 7?</p><p>33 is 50% of</p><p># 9</p><p> what number? What number is</p><p># 10</p><p>3% of 100?</p><p>What percent of</p><p># 11</p><p>200 is 0.5? What number is</p><p># 12</p><p>0.4% of 20?</p><p>What number is</p><p># 13</p><p>6.1% of 60? What percent of</p><p># 14</p><p>34 is 34?</p><p>10.4% of what</p><p># 15</p><p> number is 13? 30 is 75% of</p><p># 16</p><p> what number?</p>