20 minutes is 1/3 of an hour, so an hour can be split into 3 20 minute sections.
They run 4 miles each 20 minute section equals 4 x 3 = 12 miles per hour.
Sailing ships should be correct
Step-by-step explanation:
-4x + 9y = -22
-9x -9y = 126
-13x = 104
x = -8
8 +`y = 14
y = 6
(-8,6)
Answer:40
Step-by-step explanation: