Ratios And Rates Worksheet - Chapter 3 Page 35
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38Practice
Lesson 3.1
Write two equivalent ratios for each of the following.
1.
4
9 : 20
21 to 3
18 :1.5
a)
b)
c)
d)
5
2.
Solve each proportion.
■
■
■
5 : 9
40 :
30 : 80
51:
:18
60 : 270
a)
b)
c)
Draw a rectangle. Draw another rectangle twice as long and
3.
twice as wide. Describe each ratio.
ratio of the smaller diagonal to the larger one
a)
b)
ratio of the smaller area to the larger one
Lesson 3.2
Complete the ratio table in the margin.
4.
Boys
15
5
■
Solve the proportion 6 :15
33 :
in more than one way
5.
Girls
18 36 54
60
using ratio tables. Show what you did.
Lesson 3.3
6.
A stick is cut into four pieces of different lengths. The ratio of
the length of one piece to the next shorter one is always 2 to 1.
What is each piece as a fraction of the whole stick?
Lesson 3.4
Rewrite each rate as a number of items for $1.
7.
a)
4 cookies for 50¢
b)
3 kg of sugar for $1.20
8.
Which of the games on the left is the best deal? Explain.
Lesson 3.5
Sally asks, “If 20
5
25 and 30
5
35, then why does
9.
20 : 30 not equal 25 : 35?” How would you answer Sally’s
question?
Lesson 3.6
In a 750 g bag of salad mix, the ratio of lettuce to cabbage to
10.
carrots is 8 : 4 : 3 by mass. What is the mass of each ingredient?
11.
A car odometer reads 14 985 km at the start of a trip, and the
car has a full tank of gas. At the end of the trip, the odometer
reads 15 235 km, and 30 L of gas is needed to refill the tank.
How much gas does the car use per 100 km?
136
Chapter 3
NEL
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