-3x-6y=17
-6y=3x+17
y=-x/2-17/6 so the slope of the line is -1/2
For another line to be perpendicular to this one the product of their slopes must equal -1
(-1/2)m=-1, m=2 so the perpendicular line will have a slope of 2...
y=2x+b, using point (6,3) we can solve for b...
3=2(6)+b
3=12+b
b=-9 so
y=2x-9
Answer: x =
Step-by-step explanation:
-3x -2y = 10 Get x alone by add 2y to both sides
+2y +2y
-3x = 10 + 2y Divide both sides by -3
x = -10/3 - 2y/3
Answer:
3 1/3 hr
Step-by-step explanation:
Bob's rate:: 1/5 job/hr
Bill's rate:: 1/8 job/hr
together rate:: 1/x job/hr
Equation:
rate + rate = together rate
1/5 + 1/8 = 1/x
8x + 5x = 40
13x = 40
x = 40/13 = 3 1/3 hr (time to do the job together)