Question 906664
x+y=2
x=2-y
3.5*x=d
3.5*(2-y)=d
4*y=d
3.5*(2-y)=4*y
7.0-3.5y=4*y
7.0=7.5*y
7.0/7.5=y
y=7.0/7.5
y=0.93333333 hours down
y time =56.0 minutes down
x=1.06666667 hours  up
x time =64.0 minutes up
One way up distance = 3.73333333 miles
One way  down distance = 3.73333333 miles