Answer:
1
Step-by-step explanation:
x+2/2x=3/2
2x×3=2x+4
6x=2x+4
4x=4
x=4/4
x=1
Answer:
x=60
Step-by-step explanation:
This is a parallelogram.
For a parallelogram,
sum of angles in one side is 180.
we know, in a parallelogram,
the consecutive angles are supplementary or
their sum is 180.
So, we get,
x+33+87=180
or, x+120=180
subtracting 120
x+120-120=180-120
or, x=60
Answer: $62.25
Step-by-step explanation:
The mark-up is $477.25 - 415 = $62.25
Answer:
(-2, 0)
Step-by-step explanation:
y = 2x+4
6x - 3y = -12
Start by simplifying the second equation by dividing everything by 3 (this will make the math easier)...
2x - y = -4
Then, substitute 2x+4 for y into the second equation (this is because y = 2x+4)...
2x-3(2x+4)=-4
Distribute the -3
2x-3(2x)-3(4)=-4
2x-6x-12=-4
Combine like terms
-4x-12=-4
Add 12 to both sides
-4x-12+12=-4+12
-4x=8
Divide both sides by -4
x=-2
Plug -2 back in for x to solve for y:
y = 2(-2) + 4
y=-4+4
y=0
(x, y) = (-2, 0)