Solve by the linear combination method (with or without multiplication).
1 answer:
The first step is to name the equations to make the process of solving them easy.
The second step is to multiply each of the equations by the coefficient of the x term in the other equation. In this case, we will multiply equation (1) by 5 to get equation (3) and then multiply equation (2) by 6 to get equation (4).
The next step is to add equation equation(3) and (4) together to get equation (5) as shown below;
The next step is to take the value of y and substitute it into any of the equations above. For this solution, I pick equation (1). The work done to solve for x is shown below.;
The solution for this system of equations is
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Answer:
$24.75
Step-by-step explanation:
Let's first add up all the costs:
Since they split it, let's divide that by 2:
Thus, they both spent $24.75.
Answer:
Table (4)
Step-by-step explanation:
Slope of a line passing through two points and
is,
m =
From the table (1),
Two points lying on the graph are (2, 1) and (6, -1).
Slope of the line = =
From the table (2),
Two points lying on the linear function are (0, 8) and (2, 4).
Slope of the line = = -2
From the table (3),
Two points are (-4, 4) and (-2, 5).
Slope of the line = =
From table (4),
Two points lying on the function are (-2, 0) and (0, 4).
Slope of the line =
Therefore, Table (4) represents a linear function with slope 2.