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Bond [772]
3 years ago
7

What is the solution of the system of equations? y= -2x+8 y= x-4

Mathematics
2 answers:
Taya2010 [7]3 years ago
7 0
X=4, y=0 my answer is too short but I'm to lazy to type the whole pr0cess
Alinara [238K]3 years ago
4 0
We can solve by substituting x-4 for y in the first equation.
x-4 = -2x+8
3x = 12
x = 4

Then plug in 4 for x in one of the equations.
y = 4-4
y = 0
OR
y = -2(4)+8
y = -8+8
y = 0

So the solution is (4,0)
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1.The base length of a rectangle is multiplied by 8. How does this affect the area?
earnstyle [38]

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2x bigger

Step-by-step explanation:

because if you split the rectange in half, it would be 2x?

3 0
2 years ago
Read 2 more answers
the volume of a gas varies inversely as the pressure upon it. if the volume of the gas is 160 cubic centimeters at a pressure of
marin [14]
It was stated in the problem that a given volume of a is inversely proportional with the pressure of the system. It means that the as the volume increases, the pressure would decrease and as the volume decreases, the pressure would increase. We would express it as:

V α 1/P

To change it to an equality, we introduce a proportionality constant, k. We do as follows:

V = k/P

So, to determine what is asked, we need to first calculate for the value of k.

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4 0
3 years ago
Part C What conclusion can you draw from this? To determine whether they used the same number of tiles, set the two expressions
LUCKY_DIMON [66]

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Step-by-step explanation:

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4 0
2 years ago
Three sets of a sum of a number and four are added to the sum of 7 times the same number and 13
Reika [66]
Let
x--------------> a number

we know that
<span>three sets of a sum of a number and four----------> 3(x+4)
t</span><span>he sum of 7 times the same number and 13--------> 7x+13

therefore

</span>(Three sets of a sum of a number and four) are added (to the sum of 7 times the same number and 13) ----------> [3(x+4)] + [7x+3]

[3(x+4)] + [7x+3]------> [3x+12] + [7x+3]=10x+15

the answer is 10x+15


5 0
3 years ago
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