Alg. I Proportions & Ratios

- 1. Solve 3/7 = x/28
A) 10 B) 12 C) 24 D) 21 - 2. Solve 3/5 = 15/x
A) -25 B) 21 C) 25 D) 15 - 3. Solve x/18 = 12/72
A) 6 B) 3 C) 4 D) 5 - 4. 32/x = 4/17
A) 137 B) 136 C) 135 D) 134 - 5. Find the unit rate for 282 passengers in 47 cars
A) 7 B) 6 C) 8 D) 0.16 - 6. Find the unit rate for 600 calories for 8 servings
A) 70 B) 2.13 C) 0.13 D) 75 - 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) 15 minutes C) 16.6 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) 12.8 inches B) 20 inches C) 200 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) 3,996 miles B) 27.75 miles C) 26 miles D) 2,843 miles - 10. Write the ratio 33 to 8 in two other ways
A) 33/8 & 8/33 B) 8/33 & 8:33 C) 33:8 & 8:33 D) 33/8 & 33:8 - 11. Write the ratio 14/18 in simplest form.
A) 4/8 B) 9/7 C) 1/2 D) 7/9 - 12. Solve x/1 = 24/2
A) 1/12 B) 1/2 C) 12 D) 2 - 13. Find the unit rate: run 2.3 km in 7 min
A) 3km/min B) 2km/min C) 1.33km/min D) 0.33km/min - 14. Find the unit rate: earn $36.00 in 4 hours
A) $12.00/h B) $2.00/h C) $6.00/h D) $9.00/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) 27 B) 26 C) 25 D) 28 - 16. Write the ratio 8/2 in simplest form.
A) 4/1 B) 4 C) 1/1 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) $14.50 B) $23.21 C) $13.50 D) $40.31 |

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