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Review "Ratios, Rates, Proportions"
供稿人: Moehle
(原作者: Stephens)
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A certain map uses a scale of 1inch equals 25 miles.

How many miles are represented by 5 inches on

this map?

5

25
50
125
2m
5m
10m
3m

A company makes 5 blue cars for every 3 white cars

it makes. If the company makes 15 white cars in one

day, how many blue cars will it make?

9
13
17
25

Miranda enlarged a picture proportionally. Her

original picture is 4cm wide and 6cm long.  If the new,

larger picture is 10cm wide, what is its length?

8cm
12cm
15cm
20cm

The practice range at a golf course charges $4.00 for

a bucket of 40 golf balls.  At this rate, how much will

a bucket of 100 golf balls cost?

$10.00
$10.50
$13.50
$16.00

A model of a park was built on a scale of 1.5 cm to

50 m.  If the distance between two trees in the park is

150m, what is this distance on the model?

0.5cm
4.5cm
75cm
225cm

Jerry read a 200 page book in 10 hours.  At that rate,

how long will it take him to read a 320 page book?

16hours
18hours
24hours
32hours
In a scale drawing,

same scale is used, how many inches will be needed

to represent 24 feet?

2 inches
4 inches
½

inch represents 3 feet.  If the

 

8 inches
12 inches

A survey of 1000 registered voters revealed that 450

people would vote for candidate A in an upcoming

election. If 220,000 people vote in the election, how

many votes would the survey takers predict candidate

A should receive?

44,500
48,900
95,000
99,000
A farmer harvested 14,000 pounds of almonds from
an 8-acre orchard. Which proportion could be solved
to find X, the expected harvest from a 30-acre orchard?
     30
      8
14,000
14,000
=
=
30
8
x
x
        8
      30
14,000
14,000
=
=
30
x
8
x
When wheel B turns 2 revolutions, wheel A turns 5
revolutions. When wheel A turns 40 revolutions, how
many revolutions does wheel B turn?
4
16
80
100
Marcus spent $3.25 to wash his car. If one quarter
operates the car wash for 60 seconds, how long did it
take him to wash his car?
10 min
13 min
16 min
32.5 min
It takes a machine 12 minutes to fill 200 bottles of soda.
At this rate, how many minutes will it take the machine
to fill 500 bottles of soda?
25 min
28 min
30 min
40 min
Sandra had a recipe that required
5 grams
Using the table above, about how many grams of beef
does she need?
151grams
1 pound = 453.6 grams
POUND EQUIVALENT
454 grams
pound of beef.
1361 grams
Mai earns $5.50 per hour at her after-school job.
How many hours does she have to work to earn
$132.00 ?
16
20
24
28
A car gets 24 miles per gallon of gasoline. How many
gallons of gasoline would the car need to travel
144 miles?
5 gallons
6 gallons
5.5 gallons
6.5 gallons
The weekly order for the Tranquility Inn includes
40 gallons of low-fat milk and 15 gallons of
chocolate milk. What is the ratio of the low-fat to
chocolate milk order?
3:1
5:1
5:3
8:3
If ∆ XYZ is similar to ∆ STU, what is the length of
XY in centimeters?
cm
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