M = (y2-y1)/(x2-x1)
= (4-14)/3-1
= -10/2
= -5
199 and 201
..................
2 1/2= 5/2
3 1/4= 13/4
5/2•13/4= 65/8 or 8/18
Hope this helped!
Write equations for both companies:
Company A = 80 + 0.30x
Company B = 20 + 0.50x
X = number of miles.
Set the equations to equal and solve for x:
80 + 0.30x = 20 + 0.50x
Subtract 0.30x from both sides:
80 = 20 + 0.20x
Subtract 20 from both sides:
60 = 0.20x
Divide both sides by 0.20:
x = 60 / 0.20
x = 300
The answer is 300 miles.
