Solution
Vsw = 40 mph -boat velocity in XXXXX water
Xt –XXXX interval of XXXXXXXXXX XXXX and XXXXXXX XXX current
Swc=126 XX –the way XXXXXX XXXX XXX current
Sac=114 XX –XXX XXX XXXXXX XXXXXXX XXX XXXXXXX
Vc – velocity of XXX current
,
,velocity of XXX XXXX with the XXXXXXX. Therefore we XXX
,XXXXXXXX of XXX XXXX XXXXXXX XXX XXXXXXX. XXXXXXXXX XX XXX
Because XXX XXXX interval XX XXX same
XXXXXXXX XX the XXXXXXX is