Surfergirl1
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PLEASE HELP! GIVING 11 POINTS! IN DESPERATE NEED!


Dalia flies an ultralight plane with a tailwind to a nearby town in 1/3 of an hour. On the return trip, she travels the same distance in 3/5 of an hour. What is the average rate of speed of the wind and the average rate of speed of the plane? Let x be the average airspeed of the plane. Let y be the average wind speed. Initial trip: 18 = (x + y)1/3 Return trip: 18 = (x – y)3/5
What was Dalia's mph?
What was the wind speed?

Respuesta :

caylus
Hello back,

18=(x+y)/3
18=(x-y)*3/5

==>(x+y)/3=(x-y)*3/5
==> 5(x+y)=9(x-y)
==>5x+5y=9x-9y
==>4x=14y
==>x=7/2y

18=(7/2y+y)/3
==>9/2*y=18*3
==>y=12
==> x=7/2*12=42
Sorry for the error.

Answer:

42, 12

Step-by-step explanation:

on edg

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