Weegy: The answer would be y = 2 (x+2).
User: px + qy = r
2px - qy = 2r
When solving this system of equations, x =
Weegy: If r = px + qy and 2px - qy = 2r
then..
2px - qy = 2 (px + qy)
2px - qy = 2px + 2qy
- > - qy = 2qy
- - > qy = 0
If qy = 0 then 2px = 2r and px = r
User: 3x + 2y = 4
2x - y = 5
This system of equations
has no solution.
has one solution.
is coincident.
User: John made a rectangle pen for his dog using 28 feet of fencing. If the width of the pen is 2 feet more than one-half the length, what is the length and width of the pen?
The length of the pen is
Weegy: The length of the pen is 6 feet
User: Find the slope of the line whose equation is 2x - 3y + 6 = 0.
Weegy: The slope of the perpendicular line would be 3/2.
User: One number is 6 more than twice another. If their sum is 51, find the numbers.
Which of the following systems of equations represents the word problem?
User: One number is 6 more than twice another. If their sum is 51, find the numbers.
Which of the following systems of equations represents the word problem?
y = 2x + 6 and y = x + 51
y = 2x + 6 and x + y = 51
y = 2(x + 6) and x + y = 51
Weegy: This is an easy mathematical problem. In order to find the slope and the Y intercept of the equation all you need to do is bring the equation in the general form, y = mx + c. It will become y = 2x - 5. [ [ In this case as we can see 2 is the slope and -5 is the y intercept. ] ]
User: 2x - y = 10
y = -x - 1
Solve the system of equations
Weegy: x=-1/7
and y=-23/7
User: 5x + 10y = 18
x = y - 6
Which of the following equations is the result of substituting y - 6 in for x in the first equation?
(More) 3
The slope of the line whose equation is 6x - 3y = 12 is 2.
Added 5/26/2014 9:26:53 AM
This answer has been confirmed as correct and helpful.
3
px + qy = r
2px - qy = 2r
adding up the above equations the result is:
3px = 3r
px = r
x = r/p
px + qy = r 2px - qy = 2r When solving this system of equations, x = r/p.
Added 5/26/2014 9:28:53 AM
This answer has been confirmed as correct and helpful.
3
3x + 2y = 4 (equation 1)
2x - y = 5 multiple 2 on both sides:
4x - 2y = 10 (equation 2)
adding up equation 1 and 2 the result is:
7x = 14
x = 2,
y = 2x - 5 = 4 - 5 = -1
The only one solution for the system 3x + 2y = 4 2x - y = 5 is (2, -1)
Added 5/26/2014 9:31:11 AM
This answer has been confirmed as correct and helpful.
3
The slope of the line whose equation is 2x - 3y + 6 = 0 is 2/3.
Added 5/26/2014 9:32:07 AM
This answer has been confirmed as correct and helpful.
3
2x - y = 10
y = -x - 1
institute y in the first equation:
2x - (-x - 1) = 10
2x + x + 1 = 10
3x = 9
x = 3,
y = -3 - 1 = -4
The solution for the system 2x - y = 10 y = -x - 1 is (3, -4)
Added 5/26/2014 9:33:39 AM
This answer has been confirmed as correct and helpful.
