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Aleksandr-060686 [28]
2 years ago
12

Please help thx so much ​

Mathematics
2 answers:
Mashcka [7]2 years ago
5 0

Answer:

3.140

Step-by-step explanation:

hope this helped

Nataliya [291]2 years ago
5 0

Answer:

I think c is the answer....

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Answer:

The velocity of jet in still air is  860miles/hour and velocity of wind is   140miles/hour.

Step-by-step explanation:

Let x be the rate of the jet in still air and y be the rate of the wind.

Given:

Velocity against wind, a jet travels 2160 miles in 3 hours.

Velocity against wind =\frac{2160}{3} = 720 miles/hour

Flying with the wind, same jet travels 6000 miles in 6 hours.

Flying with the wind =\frac{6000}{6} = 1000 miles/hour

As such its velocity against wind is  x-y

and with wind is   x+y therefore

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Adding equation 1 and 2.

2x=1720

x=\frac{1720}{2}

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Put x value in equation 2

860+y=1000

y=1000-860

y=140

Hence velocity of jet in still air is  860miles/hour and velocity of wind is   140miles/hour.

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3 years ago
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Emma have 450000 dollars
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Is that all to the problem?

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