Ratio and Rates with Fractions

A rate written as 50 miles per hour is an example of a ____________________________

• quantity

• mass

• unit rate

• equivalent ratio

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

unit rate is a rate in which the unit in the denominator is:

• 0

• 3

• 1

• 2

How are rates and unit rates similar?

• They both are fractions.

• They both compare two different quantities of information.

• They are not similar at all.

• not here

In a classroom of 30 kids there are 18 girls and 12 boys. What is the ratio of girls to boys?

• 3:2

• 9:15

• 2:3

• 6:15

One slice of pizza had 4 olives, 2 pieces of pepperoni, 2 onions and 3 mushrooms. What is the ratio of pepperoni to onions on this slice?

• 4:3

• 2:3

• 1:1

• 4:1

Soda is on sale 4 packs for $10. What is the unit rate? (i.e. how much is each pack)

• $4.10

• $2.50

• $1.67

• $0.40

I can change numbers from fractions to decimals to percents. If I had 3/4, for example, that mean 3 divided by 4 is 0.75. What percent is that?

• 75%

• 0.75%

• 34%

• 750%

Which of these is an example of a unit rate?

• 3 loaves of bread for $5.00

• 27 miles per hour

• 2 pounds for $6.99

• 120 miles in 3 hours

You're going to have a BBQ with grilled corn on the cob. Yum. You will need 12 ears of corn. Right now they're on sale 5 for $2. How much will you spend for 12?

• $30

• $5.20

• $4.80

• $2.50