Apply the elimination method to the 2y terms since they are opposites & therefore can eliminate. Combine the rest of the terms, vertically.
x-2y= -7
4x+2y= 22
5x = 15
Divide both sides by 5.
x=3
Plug the x value to one of the original equations and solve for y.
4x + 2y = 22
4(3) + 2y = 22
12 + 2y = 22
Subtract by 12 on both sides.
2y = 10
Divide by 2 on both sides.
y = 5
Therefore, the solution to the system of equations shown is:
x=3 y=5
or
as an ordered pair (3, 5).
Answer:
Step-by-step explanation:
Area of shaded region= area of rectangle- area of triangle
Area of rectangle= l×b
=9×3
= 27m²
Area of triangle= 
b×h
= ×3×3
=
⇒4.5
Area of shaded region= area of rectangle- area of triangle
=27-4.5
=22.5m²
Answer
B., C.
Step-by-step explanation:
Since the 'E' in the middle
it represents that the angle forms at the vertex E
Please include the instructions. It appears that you want to find the value of m that makes m + 2 1/4 = 8 4/5, but you should state this explicitly.
Rewrite m + 2 1/4 = 8 4/5 as m + 2.25 = 8.80.
Subtr. 2.25 from both sides: m = 6.55 (answer)
This is also equal to 131/20 or 6 11/20.
Next time, would you please insert punctuation in your list of answers, to separate A from B, B from C, and so on.
Answer:
x=1
Step-by-step explanation:
