A3 mile boat race takes place in detroit every summer. the current in the river is 4mph. what is the speed of the boat in still water, if the total time upstream and downstream is 1 hour?

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)