Quiz about Ratios Cross Multiply to Find X

Question 1

To determine if a set of ratios are proportional, check their _____.

Accepted Answer

Cross Products

Answer

Numerators

Answer

Denominators

Answer

Cross Quotients

Question 2

Are these ratios proportional?

Accepted Answer

Yes, the cross products are equal

Answer

No, the cross products are not equal

Answer

You can't tell.

Question 3

Question 3.

Accepted Answer

x = 28

Answer

x = 1/24

Answer

x = 29

Answer

x = 3/2

Question 4

Select ALL statements that support these two ratios being proportional.

Accepted Answer

Both cross-products are 400.

Accepted Answer

The simplified ratios are both 5/8.

Answer

The cross-products are 160 and 1000.

Answer

The cross-products are 250 and 640.

Answer

The simplified ratios are 5/8 and 25/40.

Question 5

Solve the proportion using cross multiplication: $$\frac{5}{x} = \frac{10}{20}$$

Accepted Answer

10

Answer

5

Answer

20

Answer

15

Question 6

Which equation results in cross multiplying the the given proportional relationship?

Accepted Answer

$$45x=540$$

Answer

$$2x=105$$

Answer

$$8,000x=53,200$$

Question 7

Using cross multiplication, solve the proportion: $$\frac{9}{x} = \frac{3}{4}$$

Accepted Answer

12

Answer

6

Answer

3

Answer

9

Question 8

Solve for the following proportion using cross multiplication

Accepted Answer

x=11

Answer

x=0

Answer

x=1

Answer

x=10

Question 9

Solve the proportion:

Accepted Answer

15

Answer

5

Answer

10

Answer

12

Question 10

Identify the following mathematical process

Accepted Answer

Proportion

Answer

Cross Canceling

Answer

Complex Fractions

Answer

Division

Question 11

Solve the proportion:

Accepted Answer

4

Answer

3

Answer

9

Answer

6

Question 12

Question 12.

Accepted Answer

3.25

Answer

2.5

Answer

1

Answer

-2.25

Question 13

To solve for missing info in a proportion statement you must first

Accepted Answer

Cross multiply

Answer

Divide everything

Answer

Get rid of variables

Answer

Guess

Question 14

Solve the proportion.

Accepted Answer

k=5

Answer

k=3.3333333

Answer

k=60

Answer

k=90

Question 15

Solve for x

Accepted Answer

x=6

Answer

x =1/6

Answer

x = 7

Answer

x=9

Question 16

Solve the proportion.

Accepted Answer

-1.5

Answer

-3

Answer

2.1

Answer

9

Question 17

Solve for x

Accepted Answer

1/2

Answer

25/8

Answer

11

Answer

53/4

Question 18

Solve for k

Accepted Answer

165

Answer

17

Answer

1/17

Answer

1/165

Question 19

Solve the proportion.

Accepted Answer

2

Answer

-5

Answer

7

Answer

6

Ratios Cross Multiply to Find X

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