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QveST [7]
3 years ago
11

How many solutions does the following system have? y=x-2 -x+y=-5

Mathematics
1 answer:
leva [86]3 years ago
6 0
To find how many solution our system has, we are going to find the slope of each equation.
y=x-2 equation (1)
-x+y=-5 equation (2)
To find the slope, we are going to express both equations in the form: y=mx+b
where
m is the slope

Notice that equation (1) is already in the form y=mx+b; from equation (1) we can infer that m=1

To express equation (2) in the form y=mx+b, we are going to add x to both sides of the equation: 
-x+x+y=x-5
y=x+5
Now, we can infer that the slope of equation (2) is m=1. Since both equations have the same slope, we are dealing with parallel lines; parallel lines don't intercept, so the system has no solutions.

We can conclude that the correct answer is  the first choice: <span>no solutions</span>

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The length of the square pool is 8. 49cm

<h3>How to determine the area</h3>

Note that the formula for finding the area of a square is given as;

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