Ratios and Ratio Graphs

What is the missing number in the ratio table?

• 72

• 85

• 76

• 90

What is A?

• 84

• 7

• 28

• 82

Which relationship describes 2:5

• The ratio of desks to chairs if there are 5 chairs and 2 desk

• The ratio of boys to girls if there are 2 girls and 5 boys

• The ratio of girls to boys if ther are 2 girls and 5 boys

• The ratio of chairs to desk if there are 5 chairs and 2 desk

A cake recipe calls for 3 cups of wheat flour for every 7 cups of white flour. Choose the graph that best matches the table:

• 
• 
• 
• 

Choose ALL CORRECT statements.

*There may be more than 1.

• The graph represents the ratio of weight per pound to cost.

• At a weight of 8 pounds the cost is about $10.

• The unit rate is $4 per pound.

• At 9 pounds, the cost will be between $8 and $9.

• F

• G

• H

• J

What is the Unit Rate (k) in the graph below

• 12

• 5

• 6

• 9

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

• F

• G

• H

• J

Paola is planting seeds. What is the unit rate (or constant or proportionality) for number of plants to number of seed packs?

• 10 plants/1 seed pack

• 20 plants/1 seed pack

• 5 seed packs

• 40 seed packs/1 plant