Answer:
What?
Step-by-step explanation:
is this your whole question?
Answer:
x = - 1, y = 4
Step-by-step explanation:
A. We are going to use elimination method because we have +2y and -2y, and when we add these equations +2y and -2y are going to be eliminated.
B.
x + 2y = 7
<u>+ 3x - 2y = -11</u>
4x = - 4
x = - 1
x + 2y = 7
-1 + 2y = 7
2y = 8
y = 4
Answer:
The equation of the line is y = -1.x + 9
Graph is provided in the attached figure
Step-by-step explanation:
The slope intercept equation of a line in 2D(x,y) coordinates is given by the equation

where m is the slope of the line and c the y-intercept i.e. where the line crosses the y axis at x = 0
Given slope = -1, we can find c and the equation of the line
Since (3,6) is a point on the graph, these coordinates must satisfy the above equation
Substitute for y = 6 and x = 3

In the attached figure you can see that (3,6) is on the line
Answer: The final cost of the chair before sales tax is $207.70
Step-by-step explanation: Step 1: use a calculator or ask google what 30% of $349 is.
Step 2: subtract $104.70 from $349.
Step 3: then ask google what 15% of $244.30 is.
Step 4: subtract $36.60 from $244.30.