Math 8 Ratio and Rate Review Worksheet Name:______________



Math 8 Ratio and Rate Review Worksheet Name:______________

Date:__________________ Block:_______

1. Fill in the blanks with an appropriate word or words.

a) A __________ is the comparison of two like quantities.

b) A rate is the comparison of two unlike ____________

c) A _______________ is a rate that has a one in the denominator.

d) Quantities that have the same units are called ____________ quantities.

e) The _____________ is found by dividing the total price by the number of units.

2. Write each ratio in simplest form.

a) 9 to 12 ______________ b) 20 to 15 ______________

c) 65 to 35 ______________ d) 30 to 21 ______________

e) 2.5 to 15 ______________ f) 20 to 1[pic] ______________

g) 30 to 2.5 ______________ h) 2[pic] to 7[pic] ______________

i) 8m to 44 m ______________ j) 2000 km to 400 km ______________

k) 8 months to 2 yrs _____________ l) 180 sec to [pic]hr ______________

3. Write each in simplest form.

a) 8 goals in 80 shots

b) 300 calories in 40 minutes

c) 12 baskets in 40 attempts

d) $10 600 in 6 months

e) $1629 for 18 m2 of carpet

f) 6m2 of material for 5 dresses

g) 3 tanks of gas to cut 15 acres of lawn

h) $398 for 4 nights in a hotel

4. Determine the unit rate.

a) 8 goals in 80 shots b) 40 phone calls in 6 days

c) 300 calories in 40 minutes d) 12 books for $18

e) 12 baskets in 40 attempts f) 28 home runs in 560 at bats

g) $10 600 in 6 months h) 1250 flights in 15 days

i) $1629 for 18 m2 of carpet j) 18 hours of homework in 12 days

5. Fill in the blanks with an appropriate word, or words.

a) A ______________ is an equation that states that two ratios or rates are equal.

b) To check if a proportion is equal, _____________ the ratio or rates.

c) If [pic] = [pic], then the products ___________ equal ____________.

d) If [pic] = [pic], then x equals _________________.

6. Determine if the statement is true or false.

a) [pic] T / F b) [pic] T / F

c) [pic] T / F d) [pic] T / F

e) [pic] T / F f) [pic] T / F

g) 40 is to 12 as 10 is to 3 T / F h) 2 is to 3 as 12 is to 16 T / F

7. Solve.

a) [pic] b) [pic]

c) [pic] d) [pic]

e) [pic] f) [pic]

g) [pic] h) [pic]

i) [pic] j) [pic]

8. Elsa's car traveled 132 km on 8 litres of gasoline. At this rate, how many litres are needed to travel 320km?

9. If a 5 gallon can of paint can cover 3750 ft 2, how many gallons are needed to cover 30 000 ft 2 ?

10. A computer can download 2214 kb in 54 seconds. At this rate, how long will it take to download 2542 kb?

11. In 4 hours, 130 litres of oil flows through a pipe. At this rate, how long will it take 455 litres to flow through the same pipe?

12. A map has a scale of 2.5 cm to 145 km. Find the distance between two cities 22.5 cm apart on the map.

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