Ch 6 Test Review - PreAlg

Express the ratio 3 dogs out of 10 cats as a fraction in simplest form.

• 3

Express the ratio 6 quarts to 6 gallons as a fraction in simplest form.

(Hint: 1 gallon = 4 quarts)

• 1

(Definition)

the comparison of two quantities by division.

For example, 3 to 9, 3:9, 3/9 (numbers)

and a to b, a:b, a/b (algebra)

• precision

• unit rate

• scale

• ratio

Express 5 cans for $4.60 as a unit rate.

• $5.40 per can

• $9.60 per can

• $1.45 per can

• $0.92 per can

Which of the following has the same unit rate as 450 words in 6 minutes?

• 120 words in 1 minute

• 200 words in 2 minutes

• 300 words in 4 minutes

• 600 words in 5 minutes

• 30.32 L

• 11.3 L

• 24 L

• 8.79 L

The cost of 3 burgers is $22.50. If the cost is proportional to the number of burgers ordered, which of the following is not an equivalent rate?

• 7 burgers for $51.50

• 2 burgers for $15

• 5 burgers for $37.50

• 4 burgers for $30

• 37 km per hour

• 58 km per hour

• 97 km per hour

• 79 km per hour

Which sets of numbers are proportional?

• 
• 
• 
• 

• 20

• 30

• 40

• 90