b)The increase was not 30% because the 20% increase in the second year was based on a new population after the first increase.
Find the total cost for the DVDs including 5% GST 6% PST
66.60
This is a place for the community of learners in Room 8-17 to learn and enjoy math. It is an extension of the classroom making it accessible 24 hours a day, 7 days a week.
Find the total cost including 5% GST and 7% PST.
1- 4.99x2+3.99+19.99=33.96
2- 0.12x33.96=4.08
3- 4.08+33.96=38.04
Page 149
7) A herd of 100 caribou was moved to a new location. The population increased by 10% the first year and then increased by 20% the second year.
a) Find the population after the second year.
1- o.10x100=10
2-100+10=110
3-0.20x110=22
4-110+22=132 caribou
b) Explain why there was not a 30% increase in population over the two years.
Because increase is not 30%, the 20% increase in the second year and the 10% increase in the first year.
Page 150
4) How many hundred grids are needed to show each of the following percents?
a) 101% b) 589% c)1450%
For a: you will need 2 hundred grids.
For b: you will need 6 hundred grids.
For c: you will need 15 hundred grids.