Ratios and Proportions

Enter the missing numbers to create equivalent ratios. 
1 : 3
6 : 18
2 : _
4 : _

• 4 & 8

• 4 & 12

• 6 & 12

• 6 & 8

Tommy has a bag of LEGOS.  There are 6 yellow, 3 red, and 8 blue LEGOS.  What is the ratio in simplest form of red to yellow LEGOS?

• 1/2

• 6/3

• 2/1

• 3/6

Solve the proportion.

• -3

• -1.5

• 2.1

• 9

Solve for k

• 165

• 17

• 1/17

• 1/165

• x = 1/24
• x = 29
• x = 28
• x = 3/2

The cookie jar has six chocolate chip cookies and five oatmeal cookies. What is the ratio of oatmeal to chocolate chip cookies?

• 6:5

• 5:6

• 6:11

• 6:11

In my fish tank, the ratio of red fish to blue fish is 3:5. There are 20 blue fish. How many red fish are there?

• 18

• 12

• 4

• 15

Solve for x

• x=6

• x =1/6

• x = 7

• x=9

A triangle’s angle measures are in the extended ratio of 2 : 4 : 9. Find the measures of the angles.

• 20^o, 40^o, 90^o

• 24^o, 48^o, 108^o

• 24^o, 32^o, 124^o

• 20^o, 40^o, 100^o

Solve for x

• 1/2

• 25/8

• 11

• 53/4