Which of the coordinates is equal to sin 310

24 mph

Step-by-step explanation:

Plane speed =x mph

Wind speed =y mph

against wind x-y 18.00 hours

with windx+y 9.00 hours

Distance = same= 864 miles

t=d/r

864 / ( x - y )= 18.00

18 ( x - y ) = 864.00

18 x -18 y = 864 1

864 / ( x + y )= 9.00

9.00 ( x + y ) = 864

9.00 x + 9.00 y = 864 2

Multiply (1) by 1.00

Multiply (2) by 2.00

we get

18 x + -18 y = 864

18 x + 18 y = 1728

36 x = 2592

/ 36

x = 72 mph

plug value of x in (1)

18 x -18 y = 864

1296 -18 y = 864

-18 y = 864 -1296

-18 y = -432

y = 24 mph