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Remember that of means multiply in mathematics. of = x.

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Presentation on theme: "Remember that of means multiply in mathematics. of = x."— Presentation transcript:

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2 Remember that of means multiply in mathematics. of = x

3 Key Concepts: One Equation can help you solve each type of problem part=Perce nt Whol e Plug in the pieces of data the problem gives you Your unknown becomes your variable

4 Key Concepts: part=Perce nt Whol e What percent of 80 is 25? 25 = p = 80p p 80 = 31.25% = p

5 Key Concepts: part=Perce nt Whol e 30% of what number is 120? 12 0 =.30 w 120 =.30w w.30 = 400 = w

6 Key Concepts: part=Perce nt Whol e What is 85% of 150? p = p = 127.5

7 Practice: part=Perce nt Whol e The length of the Appalachian Trail is 2174 miles. 25% of the length is in the state of Virginia. How many miles are in Virginia? p = p = miles are in Virginia

8 Practice: part=Perce nt Whol e There are currently 130,000 nurses in the state of Florida. Of those nurses, 34,000 are new. What is the percentage of new nurses? 34,00 0 = p 130, ,000 = 130,000p p = 26.15% = p

9 Practice: part=Perce nt Whol e 15 is 2.5% of what number? 15 =.02 5 w 15 =.025w w.025 = 600 = w

10 Practice: part=Perce nt Whol e What is 52% of 260? p = p = 135.2

11 Practice: part=Perce nt Whol e What percent of 280 is 157? 15 7 = p = 280p p 280 = 56.07% = p

12 Finding Percent (Part) of a Whole: Method Two: Write an EquationFind 15% of 56 Change percent to decimal and of to multiplication.15 x 56 Multiply = x 56

13 Finding Percent (Part) of a Whole: Method Two: Write an EquationFind 32% of 75 Change percent to decimal and of to multiplication.32 x 75 Multiply = x 75

14 Practice: part=Perce nt Whol e 60 is 48% of what number? 60 =.48 w 60 =.48w w.48 = 125 = w

15 Practice: part=Perce nt Whol e 24 is 65% of what number? 24 =.65 w 24 =.65w w.65 = = w

16 Practice: part=Perce nt Whol e 42 is what percent of 60? 42 = p = 60p p 60 = 70% = p

17 Practice: part=Perce nt Whol e 110 is what percent of 200? 11 0 = p = 200p p 200 = 55% = p

18 I know this is a lot of information but I have faith in each and every one of you that with practice you will have this mastered in no time!


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