Answer: Your answer will be 41.
Step-by-step explanation: All you would need to do to solve is input -2 in for x in the original equation and then solve the subsequent equation. After solving you will get 41.
Answer:
(1) 400
(2) 200
Step-by-step explanation:
Revenue (R) = ticket cost (C) * Number of sold (x)
R= Cx--------------------------------------------------------------- (1)
R = (C-0.75) * (x+100)
Cx = Cx +100C-0.75x -75
0.75x-100C = -75-------------------------------------------------(2)
R = (C+1.50)* (x-100)
Cx = Cx -100C+1.5x-150
-1.5x+100C= -150-------------------------------------------------(3)
Solving equations (2)and (3) simultaneously:
0.75x-100C = -75
-1.5x+100C= -150
-0.75x = -225
x= 300
(1) x+100
= 300 +100
= 400 people
(2) x-100
= 300-100
=200
Answer:
Step-by-step explanation:
The center of the circle whose diameter has endpoints (18, -13) and (4, -3) will be the midpoint of the coordinates.
The ormua for calculating mid point is expressed as;
M(X,Y) ={(x21+x2/2, y1+y2/2}
X= x1+x2/2
Y = y1+y2/2
From the coordinates
x1 = 18 x2 = 4
X= 18+4/2
X = 22/2
X = 11
y1= -13, y2= -3
Y = -3-13/2
Y = -16/2
Y = -8
Hence the required centre will be at (11,-8)
They are perpendicular (the slope of the first line is 2/3, and the slope of the second line is -3/2, which are reciprocals of each other, meaning they are perpendicular)
X=3.5 add 10 and divide by 8