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Star Trigonometry view this picture on flickr.com to learn a whole lot more about trig http://flickr.com/photos/69836785@N00/355386913/

Consumer Math Slides January 15, 2008

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Introduction to trigonometry.

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Page 1: Consumer Math Slides January 15, 2008

Star Trigonometry

view this picture on flickr.com to learn a whole lot more about trig

http://flickr.com/photos/69836785@N00/355386913/

Page 2: Consumer Math Slides January 15, 2008

1089

(1) You just bought 40 L of gas. If you get a discount of 3.5¢/L, how much money will you save?

$1.40

(2) What is the cost of one CD if 4 cost $82.00? $20.50

(3) What is the cost of one if 2 T-shirts cost $35.00? $17.50

(4) How much white sugar is used to make 9 muffins?

1/4 cup

(5) How much butter is needed to make 45 muffins?

1 1/4 cups

(6) Find 75% of 124 93

(7) Find 75% of 110 82.5

(8) Name one LABEL in the spreadsheet.

Name, Hourly Wage, Hours, or Earnings

(9) Write a spreadsheet formula that would calculate the average earnings of all 4 people.

=AVERAGE(D2..D5)

(10) What is 99 x 11?

The following ingredients are used to make 18 banana muffins:6 small, ripe bananas 1 cup brown sugar1/2 cup white sugar 2 eggs 1/2 cup butter 3 cups flour2 tsp. baking soda 2 tsp. baking powder 1 cup chocolate chips 1 tsp. salt

Name Hourly Wage Hours Earnings Abbie 7 4 Barry 8 5 Cindy 9 6 David 10 7

A B C D12345

Page 3: Consumer Math Slides January 15, 2008

A scale drawing of a family room has dimensions of 4.5 cm by 3.25 cm. In the scale drawing, 1 cm represents 3 m. What are the dimensions of the actual family room?

An apartment building is 150 m tall. If the height of the building in the scale drawing is 25 cm, what scale is used in the drawing?

Page 4: Consumer Math Slides January 15, 2008
Page 5: Consumer Math Slides January 15, 2008

HYPOTENUSE

ADJACENT

OPPOSITEADJACENT

OPPOSITE

THETA θ

SOH CAH TOA

Page 6: Consumer Math Slides January 15, 2008

SOH CAH TOA

Page 7: Consumer Math Slides January 15, 2008

SOH CAH TOA

Page 8: Consumer Math Slides January 15, 2008
Page 9: Consumer Math Slides January 15, 2008
Page 10: Consumer Math Slides January 15, 2008

Find the missing sides of the following triangles using equivalent ratios.

Page 11: Consumer Math Slides January 15, 2008

Represent a circular window with a diameter of 50 cm. Use a scale of 1:10.

Page 12: Consumer Math Slides January 15, 2008

An apartment building is 150 m tall. If the height of the building in the scale drawing is 25 cm, what scale is used in the drawing?