Answer:
x + y +z= 10
Step-by-step explanation:
4x - y = 5 ---------(I)
4y - z = 7 ---------(II)
4z - x = 18 ---------(III)
Add all the three equations,
4x - y + 4y - z + 4z - x = 5 + 7 + 18
4x - x -y + 4y -z + 4z = 30
3x + 3y + 3z = 30
Divide the entire equation by 3
x + y + z = 10
Graphs can be used to model real world situations.
<em>The coordinates of the graph is gotten by adding 5 to the y-values of the function (see attachment for graph)</em>
The function of the graph is represented as (n, f(n)); where
<em /><em> speed</em>
<em /><em> fine for over speed</em>
When the fine increases by $5 for every speed limit.'
The new function becomes:
<u />
<u>The points on the graph are represented as:</u>
So, the new points would be calculated as follows:
See attachment for the new graph
Read more about graphs and functions at:
Answer:
a. 0
b. x = 1.25
Step-by-step explanation:
The given equation is:
a. The denominators are x and 4x. The values that make a denominator zero are:
b. Solving the equation:
The solution is x = 1.25