Alg. I Proportions & Ratios
- 5. Find the unit rate for 282 passengers in 47 cars
A) 6
B) 8
C) 0.16
D) 7
- 6. Find the unit rate for 600 calories for 8 servings
A) 70
B) 75
C) 2.13
D) 0.13
- 7. You peel 3 potatoes in 5 minutes. At this rate, how long will it take you to peel 10 potatoes?
A) 6 minute
B) 16.6 minutes
C) 15 minutes
- 8. A bush is 30in tall and casts a shadow 8 in long. A nearby tree casts a shadow of 48 inches. How tall is the tree?
A) 200 inches
B) 20 inches
C) 12.8 inches
D) 180 inches
- 9. The scale on a map is 1in : 333mi. the map distance from Chicago to Tokyo is 12 inches. Find the actual distance between the cities.
A) 27.75 miles
B) 2,843 miles
C) 3,996 miles
D) 26 miles
- 10. Write the ratio 33 to 8 in two other ways
A) 33/8 & 8/33
B) 33/8 & 33:8
C) 8/33 & 8:33
D) 33:8 & 8:33
- 11. Write the ratio 14/18 in simplest form.
A) 1/2
B) 9/7
C) 7/9
D) 4/8
- 13. Find the unit rate: run 2.3 km in 7 min
A) 1.33km/min
B) 2km/min
C) 0.33km/min
D) 3km/min
- 14. Find the unit rate: earn $36.00 in 4 hours
A) $2.00/h
B) $9.00/h
C) $12.00/h
D) $6.00/h
- 15. The ratio of teachers to students in a middle school is 2 to 25. There are 350 students in the school. Find the number of teachers.
A) 28
B) 27
C) 26
D) 25
- 16. Write the ratio 8/2 in simplest form.
A) 4
B) 1/1
C) 4/1
D) 1/4
- 17. In August, your electric bill was $25.32 for 450 kw. At this rate, what would be a bill for 240 kw?
A) $23.21
B) $14.50
C) $13.50
D) $40.31
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