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bagirrra123 [75]
3 years ago
11

On a certain airline, passengers can make calls from telephones provided ny the airline. A call cost $3 to connect plus $2.50 fo

r each minute. Which equation best represents c, the total cost for a call that lasts m minutes?
m=2.5+3m

m=3+2.5c

c=3+2.5m

c=2.5+3m
Mathematics
2 answers:
sasho [114]3 years ago
8 0
Answer:

C=3+2.5m

Explanation:
Finger [1]3 years ago
5 0

Answer: The answer is D

Hope this helps

Step-by-step explanation:

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I do believe that your correct anwer is D.

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B) First, calculate fligth time (using the vertical motion) and then calculate the horizontal movement.

Flight time = 2* ascendent time

ascendent time => final vertical velocity, Vy, = 0

sin(45) = Voy / Vo => Voy = Vosin(45) = 25.5 m/s * (√2) / 2 = 18.03 m/s

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This is the ascendant time going upward.

The flight time is 2*1.83 = 3.66 s

Horizontal motion

Horizontal velocity = Vx = constant = Vox = Vo*cos(45) = 18.03 m/s

Vx = x / t => x = Vx*t

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c) The time the ballon will be in the air was calculated in the part B, it is 18.03 s
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Yw! :)
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