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15. There are 750 registered voters in one precinct. In a primary election, 64 out of 100 voters actually voted. How many persons in the precinct voted?

15. There are 750 registered voters in one precinct. In a primary election, 64 out of 100 voters actually voted. How many persons in the precinct voted?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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15. There are 750 registered voters in one precinct. In a primary election, 64 out of 100 voters actually voted. How many persons in the precinct voted? 16. In a sample from a lake, a biologist found that 3 out of 25 fish were bass. The biologist estimated that the lake contains about 6,000 fish. About how many bass should the biologist estimate are in the lake? 17. Most airlines expect that out of 85 people who have reserved tickets for a flight, 7 people will not show up. If a flight has 340 reserved tickets, about how many people will be "no shows"? 18. A candle was 28 cm long. After burning for 20 minutes, the candle was 25.5 cm long. How many minutes would the candle burn from the time it was lit until the time it was used up? 19. In 25 minutes, a plane flies 102- 2 20. If Ann reads 162 words per minute, how long will it take her to read a 5670 word term paper? 21. 118 miles. At that rate, how far will it go in 1- 2 7.5 hours? A building casts a shadow 7.5 ft long. A person standing next to the building casts a shadow 3 ft long. If the person is 5 ft tall, how tall is the building? (HINT: the sides of similar triangles are in proportion.)
Transcribed Image Text:15. There are 750 registered voters in one precinct. In a primary election, 64 out of 100 voters actually voted. How many persons in the precinct voted? 16. In a sample from a lake, a biologist found that 3 out of 25 fish were bass. The biologist estimated that the lake contains about 6,000 fish. About how many bass should the biologist estimate are in the lake? 17. Most airlines expect that out of 85 people who have reserved tickets for a flight, 7 people will not show up. If a flight has 340 reserved tickets, about how many people will be "no shows"? 18. A candle was 28 cm long. After burning for 20 minutes, the candle was 25.5 cm long. How many minutes would the candle burn from the time it was lit until the time it was used up? 19. In 25 minutes, a plane flies 102- 2 20. If Ann reads 162 words per minute, how long will it take her to read a 5670 word term paper? 21. 118 miles. At that rate, how far will it go in 1- 2 7.5 hours? A building casts a shadow 7.5 ft long. A person standing next to the building casts a shadow 3 ft long. If the person is 5 ft tall, how tall is the building? (HINT: the sides of similar triangles are in proportion.)
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