Proportions Practice

 $Solve\ the\ proportion:\ \frac{2}{x}=\ \frac{8}{36}$  

• x = 9

• x = 144

• x = - 9 

Tags

CCSS.7.RP.A.2B

 $Solve\ the\ proportion:\ \frac{13}{5}=\ \frac{w}{15}$  

• x = 4.3

• x = - 39

• x = 39

• x = - 4.3

Tags

CCSS.7.RP.A.2B

 $Solve\ the\ proportion:\ \frac{a}{8}=\ \frac{26}{32}$  

• a = 104

• a = 6.5

• a = 5.6 

• a = 401

Tags

CCSS.7.RP.A.2B

 $Solve\ the\ proportion:\ \frac{15}{7}=\ \frac{21}{y}$  

• y = 54

• y = 45

• y = 8.9 

• y = 9.8

Tags

CCSS.7.RP.A.2B

Determine whether the pair of ratios forms a proportion:  $\frac{7}{12},\ \frac{21}{24}$  

• yes

• no

Tags

CCSS.7.RP.A.2A

Determine whether the pair of ratios forms a proportion:  $\frac{12}{39},\ \frac{8}{26}$  

• yes

• no

Tags

CCSS.7.RP.A.2A

To solve a proportion, use the strategy of _______________ ____________________.

• cross products

• divide, then multiply

• ratio

• equivalent ratios

Tags

CCSS.7.RP.A.2C

A proportion is

• an expression that states 2 ratios are equal.

• an equation that states 2 ratios are different.

• an equation that states 2 ratios are equal.

• an expression that states 2 ratios are different.

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs.  Write and solve a proportion to find the number c of cats.

• c=15
• c=18
• c=21
• c=16

Tags

CCSS.7.RP.A.3

Josh bought a pizza with eight slices of pizza for $12. What is the cost of a slice of pizza?

• $12
• $1.50
• $3
• $1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2