Ratios and Proportions

Write a ratio in simplest form:
10 automobiles to 13 bikes

• 1/3
• 10/13
• 4/5
• 3/1

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

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Solve for x

• x=6
• x =1/6
• x = 7
• x=9

Solve the proportion.

• -3

• -1.5

• 2.1

• 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

Solve for k

• 165
• 17
• 1/17
• 1/165

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

Solve the proportion

• 144
• 4
• 6
• 9