18x-8x +7 = 67 2 negatives = a positive
10x +7 = 67
10x +7 -7 =67-7
10x = 60
10 x ÷10 = 60 ÷10
x =6
Answer:
okay you said '' and steal my points'' so ill do
Step-by-step explanation:
Answer:
See below
Step-by-step explanation:
y=-2x + 3
y = -2*3x
Both equations are lines.
Two lines will intersect at one point
I will set the two equations equal and solve for the x coordinate.
-2x+3 = -6x
Add 2x from each side
3 = -4x
Divide by -4
-3/4 = x
Now find y
y = -6x
y = -6(-3/4)
y = 18/4 = 9/2
The solution is ( -3/4, 9/2)
Set them equal to each other because they are parallel
3x+7=5x-17
Subtract 3x from both sides
7=2x-17
Add 17 on both sides
24=2x
Divide by 2 on both sides
12=x
Answer:
56.1 cm²
Step-by-step explanation:
In any circle the area (A) of a sector is
A = area of circle × fraction of circle
= πr² × 
= π × 8.91² ×
= 
≈ 56.1 cm²
