Ratios, Equivalent Ratios, and Proportions

After 2 hours, the air temperature had risen 7 degree Fahrenheit. Write and solve a proportion to find the amount of time it will take at this rate for the temperature to rise an additional 13 degrees. 

• 45.5 

• -3.7 

• 3.7 

• -45.5 

Which package is the better buy? 
10 pound bag of peanuts for $10.04 or a 15 pound of peanuts for $16.10? 

• 10 pound bag 

• 15 pound bag 

The ratio 5:15 simplifies to...

• 1:3

• 3:1

• 1:5

• 3:5

10 students want hotdogs for lunch and 26 want hamburgers.  What is the ratio of the number of students who want hot dogs to the number of students who want hamburgers?

• 26:10

• 10:26

• 10:36

• 25:36

Simplify the ratio 12:3

• 1:2

• 6:1

• 4:1

• 1:4

There are 13 male teachers and 5 female teachers at Margo's School.  What is the ratio of female teachers to male teachers?

• 5:13

• 13:5

• 18:10

• 26:5

A bag contains marbles: 5 blue and 10 green. How many green marbles are there for every blue marble?

• 1

• 2

• 5

• 10

What is the ratio of circles to squares?

• 3:1

• 2:1

• 1:2

• 5:3

What ratio is equivalent to 1 : 3?

• 10 : 33

• 6 : 18

• 5 : 20

• 2 : 9

What is the simplified ratio of girls to boys?

• 1 : 5

• 1 : 3

• 3 : 5

• 3 : 1