Question 1197740
.
A pilot can fly 2070 miles with the wind in the same time she can fly 1840 miles against the wind. 
If the speed of the wind is 10 ​mph, find the speed of the plane in still air. 
~~~~~~~~~~~~~~~~


<pre>
Write the "time" equation, saying that travel times are the same in both trips


    {{{2070/(x+10)}}} = {{{1840/(x-10)}}}


    2070*(x-10) = 1840*(x+10)


Now simplify it step by step, until you find x, the speed of the plane in still air.
</pre>

At this point, you have all necessary instructions to complete this simple job on your own.