Ratios and Proportions

Solve:
48/10  =  n/5

• 24

• 10

• 5

• 15

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

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 scale drawing of a billboard uses the scale 4 cm:9 ft. The length of the billboard in the drawing is 11 cm. How long is the actual billboard?

• 13 ft

• 20.75 ft

• 24.75 ft

• 22 ft

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

What is a Ratio?

• Is a comparison of two quantities 

• To multiply two fractions 

• A number over another number

• Two decimals that can be multiplied

Solve the proportion:

• 4

• 8

• 14

• 10

Simplify the ratio 12:3

• 1:2

• 6:1

• 4:1

• 1:4

There were 5 ice cream cones for every 3 brownies sold at the ice cream shop. If there were 24 brownies sold, how many ice cream cones were sold?

• 8

• 15

• 40

• 29