From the first 2 statements again , x + 8 = y.
area of the hole would be 4x cm^2
area of sheet without hole is 9y cm^2
9y - 4x =76 ------------- eqn one
y = x + 8 ----------------eqn two
subs eqn two into one and u got it
btw what questions are these :o
Answer:
The solution to a system of equations is the point where the 2 lines intersect or cross.
Step-by-step explanation:
The solution to a system of equations is the point where the 2 lines intersect or cross.
For example, let us assume two systems of linear two-variable equations
Ax + By = C ........ (1) and
Px + Qy = R .......... (2)
If we solve those two equations, we will get certain values of x and y { say (h,k)}. Hence, (h,k) is the solution to those two equations.
Now, if we plot equations (1) and (2) on the coordinate plane then we will see that the graphed lines of those two equations will cross or intersect at the point (h,k) on the plane. (Answer)
Answer: actual length = 45 ft
Explanation:
Scale drawn:
1/2 inch = 5ft
Meaning that if the drawing scale is 0.5 inch then the actual bus would be 5ft.
If the length of the drawn school bus is 4 1/2 inches. We can write:
1/2 = 5
4 1/2 = x
=> x = (5 x 4 1/2)/1/2
Or x = (5 x 4.5)/0.5
x = 22.5/0.5
x = 45
Therefore the actual length of the bus is 45 ft
Answer:
2;4;3
Step-by-step explanation:
y=2x²+4x+3
Answer: x=3
Step-by-step explanation:
