Question 57408
16*4+X*6=22*10
64+6X=220
6X=220-64
6X=156
X=156/6
X=26 KNOTS FOR THE LAST 6 HOURS TO AVERAGE 22 KNOTS FOR THE ENTIRE TRI8P
PROOF
16*4+(26*6)=22*10
64+156=220
220=220