Rates Ratios and Proportional Reasoning

A hot air balloon rose 30 feet in just 6 seconds! How many feet per second is the balloon rising?

• 6 feet

• 10 feet

• 5 feet

• 1 foot

The ratio of girls to boys at basketball practice is 2:3. If there are 12 girls at practice then how many boys are there?

• 15

• 18

• 20

• 21

A recipe calls for 2 eggs to make 10 pancakes. How many eggs will you need to make 40 pancakes?

• 4 eggs
• 8 eggs
• 12 eggs
• 16 eggs

What is the cost of 1 gallon of gas if you pay $31.20 for 15 gallons of gas? Hint: What is the unit rate?

• $1.95

• $0.15

• $2.08

• $10.00

Jill's binder weighs 672 grams. How many kilograms is Jill's binder? (1 kilogram = 1,000 grams)

• 67.2 kg

• 6,720 kg

• 0.672 kg

• 0.0672 kg

The ratio of blue jays to robins  is 10:5
If there are 255 robins; how many blue jays are there? 

• 625 blue jays
• 525 blue jays
• 510 blue jays
• 128 blue jays

Which is the better buy?

• A 4 pack of t-shirts for $2.24
• A 6-pack of t-shirts for $3.12
• An 8 pack of t-shirts for $4.24

If Kevin bought 3 lbs of lettuce for $3.54, how much did the lettuce cost per pound?

• $1.18 per pound

• $1.32 per pound

• $10.62 per pound

• $10.16 per pound

An eight pack of juice boxes costs $4.79, and a 12 pack of juice boxes cost $6.59. Use this information to calculate the better buy.

• 8 pack
• 12 pack

Calculate the better buy.

• 2-ounce bottle of soap for $1.80
• 8-ounce bottle of soap for $7.28