Question 1154738
What is the speed of the plane?

{{{d=680mil}}}

{{{t=2h}}}

The speed of the plane is: 

{{{s=d/t}}}

{{{s=608mil/2h}}}

{{{s=304(mil/h)}}}


The speed of the plane is_{{{304}}}_miles per hour.


What is the speed of the air?

since return trip, distance is same

{{{d=680mil}}}

{{{t=2.5h}}}

{{{s=608mil/2.5h}}}

{{{s=243.2(mil/h)}}}

The wind's speed is_{{{243.2}}}___miles per hour.