Carlos solved a system of linear equations. He found that exactly one point satisfied both equations. What do you know for certain is true about the two lines

The two lines intersect (in other words, they have a common meeting points)

Step-by-step explanation:

Thinking process:

A linear equation takes the form of

where ,  m = gradient

             c = y-intercept (point where the line cuts the y-axis)\

Suppose we have these two linear equations:

We can find the point of intersection by solving the two equations simultaneously like this:

sub y = 2x + 4 into equation (2) gives:

2(2x+4) = -6x -1

solving yields - 0.9

Substituting x= -0.9 into equation 1 yields:

y = 2.2

In terms of the Cartesian coordinates (x, y) the point of intersection will be (-0.9, 2.2)

Hence, the point of intersection is a solution of two linear equations.

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.

my answer is$ 12

step-by-step explanation:

because 15 -2=12