X +y = 5
x = 5-y
---------------------
2x -y = 1
2•(5-y) -y = 1
10 -2y -y = 1
10 -3y = 1
-3 y = 1-10
-3y = -9
then you can divide it
y = -9/-3
y= 3
for x :
x + y = 5
x + (3) = 5
x= 5-3
x= 2
(x,y)
(2,3)
Answer: Sometimes
Step-by-step explanation: An equation sometimes has one solution. There are some equations where their is no solution. An example of this would be x = x-1 There is no solution for this equation. There are also times when an equation has an infinite amount of solutions. An example is x=x no matter how many values you put in, all will be true.
$499.96 x .15 = $74.99 off
$499.96 - $74.99 = $451.98
Hope this helps you!
Answer:
y=0.5x+40
Step-by-step explanation:
Copy the equation.
x-2y=8
Subtract x from both sides.
-2y=-x-8
Divide both sides by -2.
y=0.5x+4
Now we know the slope is 0.5.
Any line with a slope of 0.5 will be perpendiculr to the original line.
One that you can use is y=0.5x+40.
Answer:
Im not good at these so maybe 105°? Sorry if its wrong
Step-by-step explanation:
