Quiz about Ch 6 Test Review - PreAlg

Question 1

Express the ratio 3 dogs out of 10 cats as a fraction in simplest form.

Accepted Answer

$$\frac{3}{10}$$

Answer

$$\frac{10}{3}$$

Answer

$$\frac{1}{3}$$

Answer

3

Question 2

Express the ratio 6 quarts to 6 gallons as a fraction in simplest form.

(Hint: 1 gallon = 4 quarts)

Accepted Answer

$$\frac{1}{4}$$

Answer

$$\frac{1}{8}$$

Answer

$$\frac{1}{2}$$

Answer

1

Question 3

(Definition)

the comparison of two quantities by division.

For example, 3 to 9, 3:9, 3/9 (numbers)

and a to b, a:b, a/b (algebra)

Accepted Answer

ratio

Answer

precision

Answer

unit rate

Answer

scale

Question 4

Express 5 cans for $4.60 as a unit rate.

Accepted Answer

$0.92 per can

Answer

$5.40 per can

Answer

$9.60 per can

Answer

$1.45 per can

Question 5

Which of the following has the same unit rate as 450 words in 6 minutes?

Accepted Answer

300 words in 4 minutes

Answer

120 words in 1 minute

Answer

200 words in 2 minutes

Answer

600 words in 5 minutes

Question 6

Which of the following shows the correct metric (in Liters) approximation for 8 gallons?

(Hint: 1 gallon $$\approx$$ 3.79 Liters)

Accepted Answer

30.32 L

Answer

11.3 L

Answer

24 L

Answer

8.79 L

Question 7

The cost of 3 burgers is $22.50. If the cost is proportional to the number of burgers ordered, which of the following is not an equivalent rate?

Accepted Answer

7 burgers for $51.50

Answer

2 burgers for $15

Answer

5 burgers for $37.50

Answer

4 burgers for $30

Question 8

Which of the following is the same rate as 60 miles per hour?

(Hint: 1 mile $$\approx$$ 1.61 km)

Accepted Answer

97 km per hour

Answer

37 km per hour

Answer

58 km per hour

Answer

79 km per hour

Question 9

Which sets of numbers are proportional?

Accepted Answer

Question 10

Solve the proportion $$\frac{2}{5}\ =\ \frac{x}{100}$$

Accepted Answer

40

Answer

20

Answer

30

Answer

90

Question 11

(Definition)

the ratio that defines the relation between the actual figure and its model.

Accepted Answer

scale

Answer

units

Answer

proportion

Answer

cross products

Question 12

An blueberry pie recipe calls for 40 pounds of blueberries for 75 servings. How many pounds of blueberries are needed for 150 servings?

Accepted Answer

80

Answer

60

Answer

40

Answer

15

Answer

53

Question 13

It's almost baseball season, so a sporting store is selling 4 bags of sunflower seeds for $5. Which equation could be used to find the total cost c if a customer wanted to buy 6 bags of sunflower seeds?

Accepted Answer

$$c\ =\ 1.25\ \cdot\ 6$$

Answer

$$c\ =\ 4\ \cdot\ 5$$

Answer

$$c\ \equiv\ 24\ \cdot\ 5$$

Answer

$$c\ =\ 20\ \cdot\ 6$$

Question 14

Suppose a model of the Lincoln Memorial in Washington, DC is 10 inches tall. The actual height of the Lincoln Memorial is 100 feet. What is the scale of the model?

Accepted Answer

1 in. = 10 ft

Answer

1 ft = 10 in.

Answer

10 in. = 10 ft

Answer

10 in. = 100 ft

Question 15

(Definition)

an equation stating that two ratios or rates are equal

Accepted Answer

proportion

Answer

ratio

Answer

rate

Answer

common units

Question 16

Penelope used a scale of 1 inch = 2 feet to construct a scale model of a nearby park. A tree in the model has a height of 4 inches. What is the actual height of the tree?

Accepted Answer

8 feet

Answer

8 inches

Answer

2 feet

Answer

4 feet

Question 17

A map has a scale of 0.5 inch = 100 miles. How many inches on the map would represent 500 miles?

Accepted Answer

2.5 inches

Answer

5 inches

Answer

10 inches

Answer

25 inches

Question 18

What value of x makes $$\frac{x}{3}\ =\ \frac{1.2}{4}$$ a proportion?

Accepted Answer

0.9

Answer

14.4

Answer

10

Answer

1.6

Question 19

A taco dip recipe calls for 6 pounds of ground beef for 25 servings. How many pounds are needed for 30 servings?

Accepted Answer

7.2

Answer

5

Answer

8

Answer

15

Question 20

At a convenient store, 3 candy bars are on sale for $1.08. Which equation could be used to find the total cost c if a customer wants to buy 7 candy bars?

Accepted Answer

$$c\ =\ 7\ \cdot\ 0.36$$

Answer

$$c\ =\ 7\ \cdot1.08$$

Answer

$$c\ =\ 3\ \cdot\ 0.36$$

Answer

$$c\ =\ 7\ \cdot\ 3.24$$

Question 21

Express this ratio as a fraction in simplest form:

6 pounds to 256 ounces

(Hint: $$1\ pound\ =\ 16\ ounces$$ )

Accepted Answer

$$\frac{3}{8}$$

Answer

$$\frac{4}{9}$$

Answer

$$\frac{5}{12}$$

Answer

$$\frac{5}{8}$$

Question 22

Which sets of numbers are proportional?

Accepted Answer

Question 23

Express 455 miles every 7 hours as a unit rate.

Accepted Answer

65 mi/h

Answer

1625 mi/h

Answer

55 mi/h

Answer

6.5 mi/h

Question 24

(Definition)

when a rate is simplified so that it has a denominator of 1

Accepted Answer

unit rate

Answer

nonproportional

Answer

rate

Answer

scale drawing

Question 25

Which of the following has the same unit rate as 16 movies in 8 weeks?

Accepted Answer

2 movies in 1 week

Answer

5 movies in 7 weeks

Answer

6 movies in 15 weeks

Answer

3 movies in 4.5 weeks

Question 26

Cindy's dad wants to build a dollhouse that is a scale model of their house. If their house is 45 feet tall and the model is 15 inches tall, what is the scale of the model?

Accepted Answer

1 inch = 3 ft

Answer

1 ft = 15 inches

Answer

1 inch = 3 inches

Answer

45 inches = 1 ft

Question 27

(Definition)

a standard of measurement for the same kind of quantity

Accepted Answer

unit

Answer

scale model

Answer

rate

Answer

ratio

Question 28

Express this ratio as a fraction in simplest form:

35 pints to 7 gallons

(Hint: $$1\ gallon\ =\ 8\ pints$$ )

Accepted Answer

$$\frac{5}{8}$$

Answer

$$\frac{4}{9}$$

Answer

$$\frac{5}{12}$$

Answer

$$\frac{3}{8}$$

Question 29

A roller coaster can accommodate 346 riders in 20 minutes. How many riders could ride in 90 minutes?

Accepted Answer

1557

Answer

692

Answer

1384

Answer

2768

Question 30

Determine whether the pair of ratios forms a proportion.

$$\frac{15}{24},\ \frac{3}{8}$$

Accepted Answer

no

Answer

yes

Answer

maybe

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