They get 550 miles closer per hour. 900/550=1.636363.... They will meet after 1.64 hrs
Work:
21x-7y=12
-7y=12-21x
y= -12/7+3x
Point: (1,-3)
y-y1=m (x-x1)
y+3= -12/7 (x-1)
y+3= -12/7x + 12/7
y= -12/7x -9/7
The equation is y= -12/7x- 9/7
1. 25 + 3u = 2u
-3u = -3u
25 = -u
-25=u
2. 14x - 8 = 6x
8x - 8 = 0
8x = 8
x=1
3. 8.5 - 3z = -8z
8.5 = -5z
-1.7 = z
4. 9m + 14 = 2m
7m + 14 = 0
7m = -14
m = -2
8% is equal to 0.08
Hope this helps, Sorry that it takes so long for people to get answers because of greedy people or people sending links.
Well, it will be 3 ( 8) ^ 2x/3