Answer:
The value of the variable x is -2 and the value of the variable y is -7.
Step-by-step explanation:
The substitution method consists of:
- Solve for an unknown in one of the equations, which will be a function of the other unknown
.
- In the other equation that is not used, the same unknown is replaced by the expression obtained in step 1.
- Solve for the only remaining unknown, obtaining the numerical value of an unknown.
- Substitute the cleared unknown in step 3 for its numerical value in the equation obtained in step 1.
- Operate to obtain the numerical value of the other unknown.
In this case, you have the system of equations:
Isolating the variable y from the second equation:
y= -1 +3*x
Replacing this expression in the first equation:
2*x-3*( -1 +3*x)= 17
Solving:
2*x -3*(-1)-3*3*x= 17
2*x +3 -9*x= 17
2*x -9*x= 17 -3
(-7)*x= 14
x= 14÷(-7)
x= -2
Now, replacing the value of x in the expression y = -1 + 3 * x you get:
y= -1 +3*(-2)
Solving:
y= -1 -6
y= -7
So,<u><em> the value of the variable x is -2 and the value of the variable y is -7.</em></u>
Answer:
The answer to number 1 is -2 and the answer to number 2 is 3.
Step-by-step explanation:
Hope that helps!
Answer:
Option D(No because the wrist circumference of 16 cm is paired with two heights.
Step-by-step explanation:
In the given graph we have set of points representing the wrist circumferences and heights of six students in Alyssa’s classroom.
x axis represents the wrist circumference while y axis represent the height.
Any relation is called a function if for one value of x we have only one value of y. If the graph passes the vertical line test that is if a vertical line drawn touches the graph at only one point then the graph is called a function.In the given graph for x value x=16 there are two y values 162 and 165.So the graph is not a function.
Among all the options Option D(No because the wrist circumference of 16 cm is paired with two heights.) is the right answer.
To make it simple make them all the same fraction
6/24 to trim 4/24 to style and she wants to work for 80/24 hours for 5 days
if each appointment she wants to take 6/24 to trim and 4/24 to style then every appointment will take 10/24 of an hour.
she wants to do 80/24 so she can do 8 appointments a day if each take 10/24
8 appointments a day 5 days a week
8x5= 40
Answer:
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Step-by-step explanation:
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