It is 2 because -2 was x and i knew y =2
Answer:
Step-by-step explanation:
Given
--- base of the tank base
--- height of the tank base
--- height of the tank
Required:
Determine the volume of water needed for 6 inches below the top
First, calculate the area of the tank base.
If the tank is filled 6 inches below the top, this means that the height of the water is H - 6.
So, the volume is:
Substitute 240 for Area and 36 for H
5 1/2 ft equals 66 inches
Answer:
Step-by-step explanation:
The solution is the set of points where all the equations intersect. If there is no such point, there is no solution.
For example,
y = 8
y = 6
These are parallel lines with no points in common.
Answer: A. Infinite number of solutions
Step-by-step explanation:
The given system of equations is expressed as
x + 3y = 5- - - - - - - - - - - - - -1
4x + 12y = 20- - - - - - - - - - - 2
We would apply the method of substitution. From equation 1, we would make x the subject by subtracting 3y from the left hand side and the right hand side of the equation. It becomes
x + 3y - 3y = 5 - 3y
x = 5 - 3y
Substituting x = 5 - 3y into equation 2, it becomes
4(5 - 3y) + 12y = 20
20 - 12y + 12y = 20
20 = 20
Therefore, the system of equations has an infinite number of solutions because as many values of x and y that satisfy the first equation, they would also satisfy the second equation.