Quiz about Unit 3 Daily - Ratios, Rates, & Proportionality

Question 1

Using cross multiplication, build the equation from the proportion below:

$$\frac{6}{4}=\frac{x}{2}$$

Accepted Answer

4x = 12

Answer

6x = 8

Answer

2x = 24

Answer

3x = 9

Question 2

Use cross multiplication to build an equation from the proportion below, then use inverse operations to solve for the missing value:

$$\frac{7}{2}=\frac{49}{x}$$

Accepted Answer

14

Answer

7

Answer

21

Answer

18

Question 3

Ms. L has a marble collection with a ratio of 2 big marbles for every 3 small marbles. If Ms. L has 18 big marbles, how many small marbles are in her collection?

Accepted Answer

27

Answer

6

Answer

9

Answer

18

Question 4

What is the unit rate or cost per item if you pay $28 for 7 items?

Accepted Answer

$4.00

Answer

$35.00

Answer

$21.00

Answer

$14.00

Question 5

What is the unit rate or cost per item if you pay $3 for 4 items?

Accepted Answer

$0.75

Answer

$0.25

Answer

$1.00

Answer

$1.33

Question 6

If Ryder paid $70 for 20 gallons of gas, how much was each gallon?

Accepted Answer

$3.50

Answer

$5.00

Answer

$4.50

Answer

$4.25

Question 7

Two stores are selling the same items.

-Store B sells 3 items for $10

-Store A sells 5 items for $15

Which store has the better buy?

Accepted Answer

Store A

Answer

Store B

Answer

Both stores have the same unit rate

Answer

Neither store has the better unit rate

Question 8

If 1 gallon of water costs $0.15, about how much would it cost to fill a 1000 gallon swimming pool?

Accepted Answer

$150

Answer

$175

Answer

$225

Answer

$315

Question 9

Which set of ratios is equivalent to 4:5?

Accepted Answer

8 to 10; $$\frac{16}{20}$$

Answer

8 to 10; $$\frac{10}{15}$$

Answer

$$\frac{15}{20}$$ , 20:25

Answer

$$\frac{40}{50}$$ , 24:36

Question 10

A college has 19 engineering students for every 81 students enrolled. If the college has exactly 750 students, approximately how many are engineering students?

Accepted Answer

176

Answer

143

Answer

607

Answer

165

Unit 3 Daily - Ratios, Rates, & Proportionality

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