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mote1985 [20]
3 years ago
14

A plane flies 720 miles with the wind in 3 hours. The return trip against the wind takes 4 hours. What is the speed of the wind

and the speed of the plane in still air?
Mathematics
1 answer:
Mandarinka [93]3 years ago
4 0
Let p and w represent the speed of the plane and the speed of the wind, respectively.
.. speed = distance/time
.. p +w = 720/3 = 240
.. p -w = 720/4 = 180

Add the two equations to eliminate w.
.. 2p = 420
.. p = 210
.. w = p -180 = 30

The speed of the wind is 30 mph.
The speed of the plane in still air is 210 mph.
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A small company can produce up to 200 handmade sandals a month. The monthly cost, C, of producing x sandals is C(x) = 1000 + 5x.
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3 0
3 years ago
QUESTION 4 PLEASE HELP ME ASAP
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Answer:

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4 0
2 years ago
Can someone check my answers
Lelechka [254]
The first image with the answers are right but the second image is blank
8 0
3 years ago
Read 2 more answers
4/6 x what equals 8/6​
Sidana [21]

Answer: 4/6

1. Subtract 8/6 by 4/6.

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4/6 + 4/6 = 8 is the same as:

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<em>Notice: You don't change the denominator if your adding or subtracting.</em>

<em>That's why 4 + 4 = 8 is the same as 4/6 + 4/6.</em>

<em />

<h2>Final answer: 4/6. </h2>

5 0
3 years ago
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