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What is the wind speed when .. The top speed of a small plane is 180mph, in still air. One windy day, the plane flew 100 miles into the wind at top speed, in the same length of time it took to fly 135 miles with the wind, at top speed. Write an equation, and solve it to find the speed of the wind. Round your answer to the nearest tenth, if necessary, and five your answer as a complete sentence.

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There is no such thing as still air in nature.

Posted on Nov 12, 2014

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SOURCE: How you round 13.228 to nearest tenth?

it would be 13.2 because you just use the hundreths place which is another 2 and tells you to leave it the same

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SOURCE: ACME Skateboards Inc., has paid

Hello,
Doesn't any body do their homework anymore? How are they supposed to learn anything?
Draw your graphs by hand or on a graphing calculator.
Think about the intersection points. (What does that mean when two curves intersect?)
Use the equation for the demand to obtain D for a particular x.
You can also determine by how much one function exceeds another for a particular value of the x variable (the graph is rather clear).
I assume you can solve a quadratic equation.
Use these hints to solve the problem.
Here is a graph. I even restricted it to the first quadrant so as not to mislead you into giving meaningless answers.


.e89465e.jpg

Hope it helps.

Posted on Oct 04, 2009

SOURCE: subtract and round to nearest tenth 13.685-4.12

9.6

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Press 2nd then F--D key(its means left arrow key or left key from zero)

Posted on Feb 24, 2013

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The top speed of a small plane is 180mph, in still air. One windy day, the plane flew 100 miles into the wind at top speed, in the same length of time it took to fly 135 miles with the wind, at top speed....


Suppose the length of time taken is T and the wind speed is W. Also we will assume that the ground speed of the plane is exactly its top speed plus or minus the wind speed, with no losses anywhere. So

(180 - W) * T = 100
(180 + W) * T = 135

180T - WT = 100
180T +WT = 135

Add these 2 equations together

360T = 235 so T = 0.653 hrs or 39.17 min

Now subtract equation 1 from equation 2

2WT = 35 This is the equation you ask for in your question

W = 35 / 2 / 0.653 or 26.8 mph

Check this

(180 - 26.8) * 0.653 = 100 OK

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8^)

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Took me on a 2 lane route for 100 miles instead of freeway!


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