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19. Ten bakers can bake 20 cakes in 4 hours. How many bakers are needed to bake 8 cakes in 2 hours? A. 8 В. 6 C. 7 D. 4

19. Ten bakers can bake 20 cakes in 4 hours. How many bakers are needed to bake 8 cakes in 2 hours? A. 8 В. 6 C. 7 D. 4

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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19. Ten bakers can bake 20 cakes in 4 hours. How many bakers are needed to bake 8 cakes in 2 hours? A. 8 В. C. 7 D. 4 The sum of the digits of a three-digit number is 14. The units' digit is half the tens digit. If the digits are reversed, the resulting number is 198 more than the original number. Find the original number. 20. A. 563 В. 921 C. 842 D. 284 21. Raj and Howard are exercising on a 400-m long track. Raj walks at an average speed of 2 m/s. After Raj has completed one full lap, Howard starts from the same position Raj did, jogging along the same path at an average speed of 5 m/s. How long does Howard have to run to catch up to and pass Raj? А. 133 s В. 143 s C. 153 s D. 163 s 22. The triathlon consists of a half mile swim, a 30 mile bicycle ride and an eight mile run. Max swims, bicycles and runs at constant rates. He runs five times as fast as he swims, and he bicycles twice as fast as he runs. Max completes the triathlon in four and quarter hours. How many minutes does he spend bicycling?
Transcribed Image Text:19. Ten bakers can bake 20 cakes in 4 hours. How many bakers are needed to bake 8 cakes in 2 hours? A. 8 В. C. 7 D. 4 The sum of the digits of a three-digit number is 14. The units' digit is half the tens digit. If the digits are reversed, the resulting number is 198 more than the original number. Find the original number. 20. A. 563 В. 921 C. 842 D. 284 21. Raj and Howard are exercising on a 400-m long track. Raj walks at an average speed of 2 m/s. After Raj has completed one full lap, Howard starts from the same position Raj did, jogging along the same path at an average speed of 5 m/s. How long does Howard have to run to catch up to and pass Raj? А. 133 s В. 143 s C. 153 s D. 163 s 22. The triathlon consists of a half mile swim, a 30 mile bicycle ride and an eight mile run. Max swims, bicycles and runs at constant rates. He runs five times as fast as he swims, and he bicycles twice as fast as he runs. Max completes the triathlon in four and quarter hours. How many minutes does he spend bicycling?
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