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Percentages II (Learner Version ). Section 2: Activity Page 1: Cow of a problem Suppose a dairy farm has 150 Jersey cows and 250 Fresian cows. That’s.

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Presentation on theme: "Percentages II (Learner Version ). Section 2: Activity Page 1: Cow of a problem Suppose a dairy farm has 150 Jersey cows and 250 Fresian cows. That’s."— Presentation transcript:

1 Percentages II (Learner Version )

2 Section 2: Activity Page 1: Cow of a problem Suppose a dairy farm has 150 Jersey cows and 250 Fresian cows. That’s 400 cows altogether. What percentage of the herd are Jerseys? 400 cows 150 Jerseys

3 Section 2: Activity Page 3: Sporty Spice Suppose a basketball player sinks 45 out of 60 shots at goal. What is her shooting percentage? 60 Shots 45 Shots

4 Section 2: Activity Page 5: Smoking Statistics A group of 200 young adults are surveyed. 60 of them smoke regularly. What percentage of the group are smokers? 200 adults 60 smokers

5 Section 3: Examples Page 1: Turtle Tragedy Of the 1200 baby turtles that hatch out only 384 make it to the sea. The rest are eaten by predators. What percentage of baby turtles make it?

6 Section 3: Examples Page 2: Crayfish Catch Last year only 25% of the crayfish you caught were under sized. This year you put back 16 of the 48 crayfish you caught. Is the percentage of undersized crayfish increasing?

7 Section 3: Examples Page 3: Sharp Shooting Karl got 60 of his 75 arrows on target. What percentage was that?

8 Section 3: Examples Page 4: Whale of a whale A baby humpback at birth measures 4.2 metres long and weighs 2.5 tonnes. After one month it measures 6.0 metres long and weighs 4.0 tonnes. By what percentages has its length and weight grown?

9 The plasma television cost $660 (GST inclusive). How much of the price was GST? At 10% GST... Page 10: An historical view Section 2: Activity

10 The plasma television cost $1,200 (GST inclusive). How much of the price was GST? At 12.5% GST... Page 13: Another historical view Section 2: Activity

11 Page 18: An example You are working out an expense claim for your boss. You bought a digital camera for $ (GST included). How much of the price was GST?

12 Section 2: Activity Page 19: Another example You put $69 of petrol in you car. How much of the price is GST and how much does the garage get?

13 Section 2: Activity Page 21: Petrol Again You put $69 of petrol in you car. How much of the price is GST and how much does the garage get? Use the 3/23 method to work this out.

14 Section 2: Activity Page 23: Petrol Again and Again You put $69 of petrol in you car. How much does the garage get from the sale? Use divide by 1.15 method to work this out.

15 Section 3: Examples Page 5: Add GST The GST exclusive price of a pair of jeans as $72.00 How much GST will be added on and how much in total will you pay for the jeans?

16 Section 3: Examples Page 5: Add GST GST is often charged on the sale of land. A small block has a GST exclusive price of $483,000. How much GST will be charged on top of the price?

17 Section 3: Examples Page 7: The Hoata family bought a new Laptop for $2,990 (incl. GST). “I use this for my business,” said Paora, “So I can claim back the GST.” How much GST can Paora claim back?

18 Section 3: Examples Page 8: Taxi Fare You pay $57.50 for a taxi trip. How much of the cost is GST and how much does the taxi driver get?

19 Section 4: Assessment Page 1: New Zealand has one of the highest rates of car ownership in the world. There are about 2.5 million cars for about 4 million people. What percentage of 4 million is 2.5 million?

20 Section 4: Assessment Page 2: GST Burger Please Even a hamburger and fries has GST included in the price. If the GST inclusive price is $5.80 how much GST are you paying?

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