A system of equations has 1 solution. If 4x - y = 5 is one of the equations, which could be the other equation?
2 answers:
Answer
y=-4x+5
Step-by-step explanation:
The given equation is
In slope intercept form,
We want a second equation that will form a system with unique solution with the given equation.
To achieve this the second equation must not have a slope of 4.
The first equation, y=-4x+5 has a slope of -4 which is not equal to 4.
Hence the correct answer is y=-4x+5
We can see that the remaining options have a slope of 4 when simplified.
Second option: y = 4x-5
Third option:2y = 8x - 10----->y=4x-5
Fourth option: -2y = -8x - 10----->y=4x+10
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Answer:
12
Step-by-step explanation:
The given expression is :
We need to find the value of this expression when h = 8, j = -1 and k = -12.
Put all the values in the given expression.
So, the value of the given expression is 12.
I'm assuming you're looking for the dimensions of the plot. I'm going with that. ;) If the length of the plot is 5 meters longer than the width, then L = w + 5. The area for a rectangle is L*w, and we have an area value of 20,000 so our formula is 20000=(w+5)(w) and 
. We will bring the 20,000 over by subtraction and set the polynomial equal to 0 to factor and solve for w. 
Solving for w we get values of w=138.9 and -143.9. Of course the 2 things in math that will never EVER be negative are time and distance/length, so -143.9 is out. Our width is 138.9 and the length is 138.9 + 5 so the length is 143.9. And there you go! Hope that's what you needed!