Anwer:
A. By the definition of a perpendicular Bisector.
The line thru (-3,0) and (-6,5) has this slope:
5-0 5
m = ----------- = ------- = - 5/3
-6-(-3) -3
The y-intercept of the desired line is simply (0,0), and so b = 0 and the equation of this line is
y = (-5/3)x
Answer:
Second option is the right choice.
Step-by-step explanation:
No. 1 = x
No. 2 = 2x+7
No. 3 = x-12
Answer:
x+(2x+7)+(x-12) = 131
From there you solve to get the numbers:
34, 75 and 22
X = the number of laps Joe has ran.
x + x + x + 6 = 222
3x = 216
x = 72
Jimmy ran 72 laps.
Joe ran 72 laps.
Sally ran 78 laps.