It took 42 minutes from takeoff to get to its destination, so when you divide 31/ 42 (42 representing the time and 31 km representing the distance), you get 0.738 km/h
If in a 7 sided polygon 4 diagonals can be drawn then as you increase the number of sides you increase the number of diagonals
5 diagonals and so on
since equation 1 says that X= 1
any other equation saying x=1 will be valid!
From the number line we have x < -1.
2 - 24x > 18 - 8x subtract 2 from both sides
-24x > 16 - 8x add 8x to both sides
-16x > 16 change the signs
16x < -16 divide both sides by 16
x < -1