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kkurt [141]
3 years ago
10

Explain how to decide whether to use graphing, substitution, or elimination to solve a system of equations.

Mathematics
1 answer:
Bess [88]3 years ago
4 0
It depends on the systems of equations. I would stay away from elimination, go for substitution and graph only if asked.
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What is the best first step to write this linear equation in slope-intercept form?
attashe74 [19]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx+b

Where:

m: It's the slope

b: It is the cut-off point with the y axis

According to the statement we have the following equation:

y- \frac {2} {3} x = 4

To write the equation of the slope-intersection form we must add\frac {2} {3} xto both sides of the equation:

y- \frac {2} {3} x +\frac {2} {3} x = \frac {2} {3} x+4\\y = \frac {2} {3} x+4

Answer:

The correct option is option C

6 0
4 years ago
Help this is clever 8.4 I need this by 7
alexandr1967 [171]

Answer:

Just do 8.4 times 7

Step-by-step explanation:

8.4 times 7 = 58.8

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3 years ago
Davis knows that the area of his square shaped bag is 81 ft squared. what is the length of any side of the bag?
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area = 9 x 9

area =  81

Hope this was helpful. :-)



4 0
3 years ago
Read 2 more answers
How do I use substitution to solve a system of linear equations?
Pachacha [2.7K]

Answer:

the substitution method is one way to solve linear equation. the substitution method is when substitute the one y value with the other:

example :

x+y=10

y=10-x ( value of y)

2x+y=12 ( substitute the value of y in the equation )

2x+(10-x)=12

2x+10-x=12 ( now solve for x)

x=12-10

x=2 ( substitute the value of x in the equation x+y=10)

x+y=10

2+y=10

y=10-2

y=8

( i hope it helps)

8 0
3 years ago
PLEASE ANSWER QUESTION QUICK
Ne4ueva [31]

Answer:

4(x-3)=16?

Step-by-step explanations

X= 7

7 0
3 years ago
Read 2 more answers
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