Use the substitution method to solve the system of equations. Then check your solution. 1.) b=-4a+5
a-b=5

2.) 6x-y=-15
x+2y=17

3.) x=10
y=2x-6

4.) n=-7m-4
14m+2n=-8

Answers

Answer 1
Answer: 1. a=2 b=-3
2.
3.x=10 y=14
4.
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Related Questions

A statement which has been proven to be true is called a
A survey of 46 college athletes found that 24 played volleyball, while 22 played basketball. a) If we pick one athlete survey participant at random, what is the probability they play basketbali? b) If we pick 2 athletes at random (without replacement), what is the probability we get one volleyball player and one basketball player?
What factor makes the number sentence true 7×4 = ?×7
$1,200, 3.9%, 8months
Ho do you get the Surface Area of this shape?

Use long division to convert the rational number 7/18 to its equivalent decimal form.

Answers

Answer:

_

0,38

Step-by-step explanation:

_

__0,38___

18 ( 700

) - 54

_____

160

-144Notice that we get the same number twice.

______

160

After a certain point in time that we have two identical numbers in our division, we know that, in this case, 8 will repeat itself for all eternity.

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**That bar over the 8 in the above answer is what is known as barnotation,which indicates the digit[s] that repeat[s].

Answer:

0.3888...

Step-by-step explanation:

Ethan wants to predict who will be selected as the eighth-grade class president. Which of the following groups should Ethan survey to make his prediction?A One hundred random students from the entire school
B One hundred random students from the eighth grade
C The first 100 students from an alphabetical list of eighth graders
D The first 100 students from an alphabetical list of the entire school

Answers

the answer is B One hundred random students from the eighth grade

Answer:

B is the right answer

Step-by-step explanation:

You survey your 22 classmates on there favorite color. There are 396 students at your school. How many students in the school do you predict would choose green as there favorite color

Answers

Answer:

The answer is 18 times the number given in the survey.

Step-by-step explanation:

The survey sample is an example of the 396 students. If there are 22 classmates in the survey, you need to turn 22 into 396 for it to work. 22 times 18 equals 396, therefore 18 times the number of green in the survey.

Can you please answer the following question: 10 divided by 3

Answers

3.3 repeating or you can just say 3 1/3

Answer:3.333333

Step-by-step explanation:

$832.76 at 3% a year

Answers

24.9828 SINCE YOU HAVE TO CONVERT 3% INTO A DECIMAL, 0.03 AND THEN MULTIPLY THAT BY 832.76

The equation represents the function f, and the graph represents the function g. f(x)=6x-5A.

The rate of change of f is twice the rate of change of g.

B.

The rate of change of g is twice the rate of change of f.

C.

The rate of change of f is 3 times the rate of change of g.

D.

The rate of change of f is the same as the rate of change of g.

Answers

Answer:

A. The rate of change of f is twice the rate of change of g.

Step-by-step explanation:

The first function is f(x)=6x-5

The slope of this function is the coefficient of x. It is the same as the rate of change of f(x)

m=6

From the graph, g(x) passes through(-2,-4) and (0,2)

We use the slope formula: (y_2-y_1)/(x_2-x_1) to find the slope of g(x).

m=(2--4)/(0--2)=(6)/(2) =3

Since 6=2(3), we conclude that, the rate of change of f is twice the rate of change of g.

Answer:

A

Step-by-step explanation: