Can someone help me solve this question? 16-20 step by step Thanks! 16. Derek drove 18 miles to the airport to pick up his sister and then returned home. On thereturn trip he drove two times faster then he did on the trip there. If his total driving timewas 1 hour, what was his driving speed to and from the airport?17. John started a race running at a speed of 6 mph. Half an hour later, Kyle started running therace (from the same start position), at a speed of 7 mph. When will Kyle catch up to John?18. y varies directly as x and y = 84 when x = 12. Find y when r = 17.19. a varies inversely as b and a = 42 when b 4. Find a when b= 6.20. The amount of gallons of gasoline a car uses varies directly to how many miles it travels. If acar uses 15 gallons of gasoline while traveling for 400 miles, how many gallons of gasoline willit use if it travels for 550 miles?

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16. Derek drove 18 miles to the airport to pick up his sister and then returned home. On return trip he drove two times faster then he did on the trip there. If his total driving ti was 1 hour, what was his driving speed to and from the airport? 17. John started a race running at a speed of 6 mph. Half an hour later, Kyle started running t race (from the same start position), at a speed of 7 mph. When will Kyle catch up to Joh 18. y varies directly as r and y = 84 when x = 12. Find y when r = 17. 19. a varies inversely as b and a = 42 when b= 4. Find a when b= 6. 20. The amount of gallons of gasoline a car uses varies directly to how many miles it travels. If car uses 15 gallons of gasoline while traveling for 400 miles, how many gallons of gasoline wi it use if it travels for 550 miles?

16. Derek drove 18 miles to the airport to pick up his sister and then returned home. On return trip he drove two times faster then he did on the trip there. If his total driving ti was 1 hour, what was his driving speed to and from the airport? 17. John started a race running at a speed of 6 mph. Half an hour later, Kyle started running t race (from the same start position), at a speed of 7 mph. When will Kyle catch up to Joh 18. y varies directly as r and y = 84 when x = 12. Find y when r = 17. 19. a varies inversely as b and a = 42 when b= 4. Find a when b= 6. 20. The amount of gallons of gasoline a car uses varies directly to how many miles it travels. If car uses 15 gallons of gasoline while traveling for 400 miles, how many gallons of gasoline wi it use if it travels for 550 miles?

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter8: Areas Of Polygons And Circles

Section8.CR: Review Exercises

Problem 40CR: Sue and Daves semicircular driveway is to be resealed, and then flowers are to be planted on either...

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