2x=y
×+y=36
x=Ed's age
y=His brothers age
Then you plug in Y into the secound equation.
×+2×=36.
You then add the two x together.
3x=36
The to get x by itself you take 36 and dive by 3 to get 12.
x=12
Then plug 12 into the equation
12+y=36
Then get y by itself.
y=24.
So, Ed's age is 12 and Ed's brother's age is 24.
Answer: A
Step-by-step explanation:
Answer:
15
x^
4
y^
11 + 64
x
^2
y^
4
Step-by-step explanation:
Answer:
Quadrilateral
Parallelogram
Rectangle
Step-by-step explanation:
Graph the shape, either on paper or using a website like Desmos. The shape has four sides, four right angles, and two pairs of congruent sides
times by a on both sides
a(a+8)= -5
expand brackets
a^2 + 8a = -5
minus 5 on both sides to set equal to 0
a^2 + 8a -5 = 0
use quadratic formula to get 2 solutions
-
![\frac{ - (8) + or - \sqrt{ {8}^{2} - 4(1)(5) } }{2(1)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20-%20%288%29%20%2B%20or%20-%20%20%5Csqrt%7B%20%7B8%7D%5E%7B2%7D%20-%204%281%29%285%29%20%7D%20%7D%7B2%281%29%7D%20)
type into calculator. one solution from + other from -