Review of sales promotions and introduction to ratios.

1. Ratios
Have you ever heard of the Golden Ratio?
Athens - Acropolis Parthenon (West Side)

3. An Example ...
Corey buys a jacket on sale for $53.99. Before the sale the jacket cost $63.89.
What is her percent rate of savings?

4. Now you try ...
Andrea goes to her local department store and buys the following items:
Old Price New Price
1 shirt @ $18.99 1 shirt @ $16.99
2 pairs of socks @ $3.29 each 2 pairs socks @ $2.67 each
1 sweater @ $25.50 1 sweater @ $19.99
(a)Find the percent rate of savings for each item.
(b)Find the total bill and include the taxes.

5. Now you try ...
Andrea goes to her local department store and buys the following items:
Old Price New Price
1 shirt @ $18.99 1 shirt @ $16.99
2 pairs of socks @ $3.29 each 2 pairs socks @ $2.67 each
1 sweater @ $25.50 1 sweater @ $19.99
(b)Find the total bill and include the taxes.

6. What is a ratio? Part : Whole Part : Part
Vegetables
Fruits
Part : Part
Part : Part
Part : Whole

7. Lee's soccer team played 16 games and won 9 of them.
Express the number of games won to the number of games played as a
ratio.
Express the number of games lost to the number of games played as a
ratio.
Express the number of games won to the number of games lost as a
ratio.

8. Sam is looking for posters to cover the walls in his room. He finds one poster
that is 50 cm by 50 cm. He finds another that is 21 cm by 67 cm.
Find the area of each poster. Compare the area of the first poster to the are of
the second using a ratio. Do you notice anything about the ratio you made?

9. Assignment: Page 237
Questions #1 to 8