Elearning Review Quiz on Proportionality

What are two equal ratios or rates called?

• Rate
• Ratio
• Proportion
• Unit Rate

The ratio of a person's weight on Earth to his weight on the Moon is 6 to 1. Xavier weighs 90 pounds on Earth. How much would he weigh on the Moon?

• 60 pounds

• 96 pounds

• 540 pounds

• 15 pounds

Are the two ratios proportional?
7:12 and 5 to 8

• Yes
• No

Are the two ratios proportional?
12/14 and 30:35

• Yes
• No

What does the point (2,4) represent?

• They get 2 cm of rain in 4 hours
• In 2 hours it rains 4 cm
• ¹/₂ cm per hour
• 1/2 hour per 1 cm of rain

A grading machine can grade 48 multiple-choice tests in 1 minute. How log will it take the machine to grade 288 tests?

• 6 minutes

• 6.25 minutes

• 5.25 minutes

• 5 minutes

The ratio of boys to girls is 3 to 2. If there are 12 boys, how many girls are there?

• 2

• 4

• 6

• 8

It takes one Super Giant Pizza to feed 3 people. If you invite 36 people, how many pizzas will you need?

• 3

• 6

• 9

• 12

A box of cereal cost $3.59 for 30 oz. How much is the unit rate per ounce? Round to the nearest cent.

• 11 cents
• 12 cents
• 13 cents
• 10 cents

Identify the constant of proportionality.

• k = 1/0.45

• k = 0.45

• k = -0.45

• k = -1/0.45

• none (not proportional)