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please help!!!!!!!!!!

Sagot :

plane flies 390 miles with the wind

or 325 miles against the wind

The speed of the wind is 10 miles per hour

find the speed of the plane

In this case, we can see that

[tex]\begin{gathered} \frac{390\text{ miles}}{x+10\text{ }}\text{ must be equal to } \\ \frac{325}{x-10} \end{gathered}[/tex]

hence the answer is

[tex]\frac{390\text{ miles}}{x+10\text{ }}=\frac{325\text{ miles}}{x-10\text{ }}[/tex]