Ratios can be written as fractions.....so the ratio of black keys to white keys is 6:8...which can be written as 6/8....which reduces to 3/4...hence the ratio simplified is 3:4......which is also written as 3/4 and as 3 to 4
Answer:
Graph the first equation.
Graph the second equation on the same rectangular coordinate system.
Determine whether the lines intersect, are parallel, or are the same line.
Identify the solution to the system. If the lines intersect, identify the point of intersection. ...
Check the solution in both equations.
Step-by-step explanation:
Given:
The line passes through the points (8,-4) and (6,2).
To find:
The slope of the line.
Solution:
If a line passes though two points 
, then the slope of the line is
The line passes through the points (8,-4) and (6,2). So, its slope is
Therefore, the slope of the line is -3.
Step-by-step explanation:
you can see the steps above
