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Lesson: The Percent Proportion Trail 7.RP3Guided Notes - How to Calculate With PercentsThe Percent EquationUse the proportion aw= p100 to solve percent problems. a = the partp = the percent w= the wholeSubstitute two values you already know into the proportion. Then use algebra to solve for the unknown value.Examples SolutionWhat number is 38% of 325?40 is what percent of 180?What percent is 28 of 40? Guided Practice (Try these on your own usingaw= p100)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# 1What percent of 65 is 13?# 2$4 is what percent of $50?# 3What number is 35% of 22?# 414% of 81 is what number?# 513 is 26% of what number?# 655 is 40% of what number?# 7What percent of 45 is 72?# 81% of what number is 7?# 933 is 50% of what number?# 10What number is 3% of 100?# 11What percent of 200 is 0.5?# 12What number is 0.4% of 20?# 13What number is 6.1% of 60?# 14What percent of 34 is 34?# 1510.4% of what number is 13?# 1630 is 75% of what number? ................
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