SOLUTION: I need some help with these questions.
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14. Flight 725 left New York at 10:28 a.m. flying north. Flight 245 left from the same airport at 11:18 a.m. flying south at one hundred
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-> SOLUTION: I need some help with these questions.
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14. Flight 725 left New York at 10:28 a.m. flying north. Flight 245 left from the same airport at 11:18 a.m. flying south at one hundred
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Question 747634: I need some help with these questions.
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14. Flight 725 left New York at 10:28 a.m. flying north. Flight 245 left from the same airport at 11:18 a.m. flying south at one hundred twenty kph less than three times the speed of flight 725. At 1:06 p.m. they are 1,030 kilometers apart. What is the average rate of speed for Flight 245?
A) 165 kph
B) 395 kph
C) 365 kph
D) 345 kph
E) 155 kph
F) 175 kph
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15. What is the average rate of speed for Flight 725?
A) 165 kph
B) 395 kph
C) 365 kph
D) 345 kph
E) 155 kph
F) 175 kph
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Any help would be greatly appreciated, and if you can show your steps, that would really help me to understand how I should go about tackling more problems like these in the future. Thank you for your time. Answer by MathLover1(20849) (Show Source):
You can put this solution on YOUR website! If the north-bound flight's speed is and the south-bound flight's speed is ;
and
substituting,
substituting in the first equation,
Flight is the south-bound flight, so it's , or answer .
What is the average rate of speed for Flight ?
since given light flying north, its speed is which is ; so, answer is )
