Proportional reasoning and review.

1. Ratios and Proportional Reasoning ...
I'm sure my life will end still wanting to read just one more book.

2. Consumer Decisions - Mental Math #3
1. Find 12.5% of 240 7. You have $12.00 to spend on spring
30
rolls. Spring rolls are three for $4.00.
How many can you purchase?
9
2. Write 1/4 as a decimal
0.25
3. What is 16% as a decimal? 8. What is 16 x 8? 128
0.16
4. Find 12.5% of 40 9. PST is 8% in Ontario. How
5 much tax must be paid in Ontario
on an $80.00 pair of shoes?
5. What is 12 x 8? $6.40
96
6. In Nova Scotia, HST is 15%. 10. What is 8 x 22? 176
How much tax would you have to
pay on a radio that costs $200.00?
$30.00

3. 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?

4. If you want to enlarge a 3 inch wide by 4 inches long photo to be 9 inches
wide, how long will the length be?

5. Assignment: Page 240
Questions #1 to 6