Ratios And Rates Worksheet - Chapter 3 Page 32
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38On a 1035 km trip from Calgary, to Abbotsford, B.C., Dave’s
7.
dad drove at 85 km/h. On the trip back, there were
construction problems and his speed was 75 km/h. What was
his average speed for the whole trip?
Digital televisions often have a width-to-height ratio of 16 : 9.
8.
The width of a TV screen is 104.0 cm. What is its height?
9.
In 2005, 4 in 10 Canadian teens aged 12 to 17 were exposed to
second-hand smoke. About how many students in your school
would have been exposed to second-hand smoke in 2005?
In 2007, the amount of ozone over Antarctica dropped
10.
30.5 million tonnes. In 2006, the amount of ozone dropped
44.1 million tonnes.
Describe the drop in the amount of ozone for the two years
a)
as a ratio.
If the drop in 2008 could be described by an equivalent
b)
ratio, what would the drop in tonnes be?
The population density of an area tells how many people there
11.
Reading Strategy
are for each square kilometre. For example, the population
Finding Important
2
density of Canada is 3.2/km
.
Information
The population of Edson, Alberta, is 8098. What would its
a)
Use a KSO chart to
area be, based on the Canadian population density?
help you solve the
2
The actual area of Edson is 29.54 km
. Is Edson more
b)
problem.
crowded or less crowded than Canada in general? Explain.
What do you Know?
2
The population density of South Korea is 460/km
. There
c)
What do you want to
Solve?
are about 34 million people in Canada. How many people
What Other information
would live in Canada if it were as crowded as South
do you need?
Korea?
On average, a certain baseball player has 212 hits in 1000 times
12.
at bat. Describe three different strategies you can use to
determine how many hits he is likely to get in 400 times at bat.
2
Create and solve a problem that uses
as a ratio and as a rate.
13.
3
133
Ratios and Rates
NEL
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education