Question 1049677
Most likely a sign mistake, just as a guess.  Possibly an interpretation mistake.


I am using variable assignments:
x, speed in absence of wind
y, speed of the wind

"Into" the wind, means "AGAINST" the wind, making the actual speed slower than in absence of any wind; and notice how the longer travel time is given for "against the wind".

<pre>
                SPEED           TIME       DISTANCE

WITHWIND        x+y              5.5       514.8

AGAINSTWIND     x-y             11         514.8
</pre>


You can find what your mistake was and should be able to form the needed equations and correctly solve.  The management of the language was likely the mistake; and not the otherwise written symbolic number properties steps.