Proportions Ratio Tables

A salad dressing has 4 parts oil and 1 part vinegar. Manuela uses 2 tablespoons of vinegar and 8 tablespoons of oil in her dressing. This situation ___ a proportional relationship because _______.

• represents, both have a ratio of 4:1

• represents, both have different ratios

• does not represent, both have a ratio of 4:1

• does not represent, both have different ratios

A specific shade of orange paint calls for 1 parts yellow to 4 parts red. Catie uses 1.5 cups of yellow paint and 6 cups of red paint. This situation _____ a proportional relationship because ________.

• represents, both have different ratios

• does not represent, both have different ratios

• represents, both have a ratio of 1:4

• does not represent, both have a ratio of 1:4

Is the cost per hour in the table proportional? If so, what is the constant of proportionality?

• Not Proportional

• Proportional, 55

• Proportional, 37.5

• Proportional, 75

Does the table represent a proportional relationship?

• yes

• no

Does the table represent a proportional relationship?

• yes

• no

What is the value of C?

• 1

• 3/4

• 1/12

• 1/6

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

Does the table represent a proportional relationship?

• yes

• no

Are the following ratios proportional?
21/30, 56/80

• yes

• no

Are the following ratios proportional?
8/10, 28/35

• yes

• no