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Anastaziya [24]
3 years ago
13

Anybody please help me :( I don’t know the answer ??

Mathematics
2 answers:
enot [183]3 years ago
4 0

elimination means to get rid of one variable by altering the coefficients of variable (by multiplying and diving by some constant number)

in this case, if you just add the two equation, y gets cancelled you get 5x=20 or x=4

put it in any equation to get y (this works because both lines pass through the same point, so they must satisfy that point) to get y=2

vredina [299]3 years ago
3 0

Answer: (4,2)

Step-by-step explanation:

You can solve this systems of equation by substitution, graphing, and elimination

Solving by Elimination was found to be the easiest for me.

3x+2y=16

2x-2y=4

eliminate 2y because a positive and a negative will equal zero.

3x+2x=5x, 16+4=20

5x=20, divide 5 on both sides

x=4

Now we solve for y

You can plug in 4 for x in either equations

I did the first equation

3(4) +2y=16

3*4=12

12+2y=16

-12        -12

2y=4

divide 2 on both sides

y=2

Answer is (4,2)

Mark brainlist please

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ratelena [41]

Answer:

B

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Step-by-step explanation:

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4 0
3 years ago
A rectangle has vertices at these coordinates. (−6, 3), (−6, 5), (2, 3) What are the coordinates of the fourth vertex of the rec
Scilla [17]

Answer:

The coordinates of the fourth vertex of the rectangle is (2,5)

Step-by-step explanation:

Let

A(-6,3), B(-6,5),C(2,3)

using a graphing tool

Plot the vertices of the rectangle

The coordinates of point D will be the intersection point of the line parallel to AC that passes through the point B with the line parallel to AB that passes through the point C

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see the attached figure


7 0
4 years ago
-4 5/1 - 6 4/6=??? help!
yanalaym [24]

Answer:

-15 2/3.

Step-by-step explanation: First off, I performed the equation -4 5/1 - 6 4/6, yielding -15.6. I then translated that to a fraction. How to do that, you ask?

Example #1

Convert 0.32 to fraction:

0.32 = 32/100

Find the greatest common divisor (gcd) of the numerator and the denominator:

gcd(32,100) = 4

Reduce the fraction by dividing the numerator and the denominator with the gcd:

0.32 = (32/4) / (100/4) = 8/25

Example #2

Convert 2.56 to fraction:

2.56 = 2+56/100

Find the greatest common divisor (gcd) of the numerator and the denominator:

gcd(56,100) = 4

Reduce the fraction by dividing the numerator and the denominator with the gcd:

2+56/100 = 2 + (56/4) / (100/4) = 2+14/25  

In your problem the final answer would result in -15 2/3. Hope this answered your question.

6 0
3 years ago
Read 2 more answers
Where do i start? Show how to apply the order of operation rules as you simplify the following expression. |-5| – 45 ÷ 3
scoundrel [369]
The absolute value of -5 is 5 (absolute value being how many units to 0)
 So we really have  5 -  45 ÷ 3 =
Order of operation says to do the division first (there are no parentheses or exponents).   So now we have 5 - 15=   and the answer to that is -10.
7 0
4 years ago
What is 5/9 divided by 7/9
N76 [4]

Answer:

5/7

Step-by-step explanation

When dividing a fraction by a fraction it is the same as multiply the inverse of the bottom fraction, so 5/9 times 9/7 so the 9's cancel and your left with 5/7

4 0
4 years ago
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