Ratios and Rates

What is a ratio?

• a comparison of two quantities

• a number

• a unit

• the answer to a problem

What is a rate?

• a ratio that compares two quantities that are measured in different units

• a unit

• a speed

What is a unit rate?

• a rate that has a zero

• a rate that compares a quantity to one of another measure

• equivalent ratios

• a rate per one

If 6 cupcakes cost $36, then, at the same rate, 12 stuffed peppers will cost $_____

• 44

• 72

• 10

• 20

10 glasses cost $80. At the same rate/price, how much do 20 glasses cost?

• $160

• $90

• $120

• $8

3 : ___ is equivalent to 6 : 10

• 5

• 6

• 3

• 20

Sue charged $120 for 12 hours of work. What is Sue's unit rate of pay?

• $10 per hour

• $12 per hour

• $0.1 per hour

• $1.00 per hour

Paula reads 88 pages in 2 hours. How many pages does she read per hour?

• 22

• 44

• 88

• 176

Find a unit rate for the situation: 45 students for 5 teachers

• 3 students per teacher

• 9 students per teacher

• 5 students per teacher

• 1 student per teacher

Find a unit rate for the situation: $24 for 12 apples.

• $3 per apple

• $1 per apple

• $2 per apple

• $4 per apple