Any chance someone can explain this ?

Mathematics

1 answer:

Harrizon [31]3 years ago

6 0

Answer:

(-9, 5)

Step-by-step explanation:

there are 2 variable: x and y

eliminate one of the variables for example y

-x - y = 4

-2x - y = 13 multiply this equation by (-1)

-x - y = 4

2x + y = -13

add both equations

2x-x-y+y = 4-13

x = -9

substitute x = -9 in the first equation

-(-9)-y = 4

9 - y = 4 subtract 9 from both sides

-y = 4 - 9

-y = -5 multiply by (-1)

y = 5

You might be interested in

Item 11 Identify the independent and dependent variables. The equation c=0.09s gives the amount c (in dollars) of commission a s

diamong [38]

Answer:

C is dependent variable

S is independent variable

Step-by-step explanation:

Here, give the equation, we are told to identify the independent and the dependent variable

When we talk of the independent variable, it is that variable which values does not depend on whatever values the second variable in the equation has. It is that variable that is used to find the other variable in the equation

While the dependent variable depends on the values we input in the equation. It is the variable that we arrive at after plugging different values for the independent variable

now looking at the question, the equation we have is as follows;

c = 0.09s

To get the value of c which is the cost , we have to input different values of a. As is the amount in sales that we have that will yield the value of the commission to be received

Thus, we can categorically say that the values of the commission are dependent on the values we get from the sales

Hence, while commission represents the dependent variable, the values of the sales are the independent variables

6 0

3 years ago

X⋅x⋅x⋅x⋅x⋅(−3)⋅(−3)⋅(−3)

poizon [28]

Answer:

Hey mate, please describe your question perfectly.

6 0

3 years ago

Read 2 more answers

Study the Proof Given.