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LenaWriter [7]
3 years ago
15

Hurrrry Djdbdidbdudhhebfjfnifnf

Mathematics
1 answer:
Pavel [41]3 years ago
7 0

Answer:

I don't know that answer will come back to you

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Question 10 of 21
PSYCHO15rus [73]

<u>ANSWER</u>

A. (4,12)

<u>EXPLANATION</u>

The equations are:

10x +2y = 64...(1)

and

3x - 4y = -36...(2)

To eliminate a variable we make the coefficients of that variable the same in both equations.

It is easier to eliminate x.

We multiply the first equation by 2 to get:

20x + 4y = 128...(3)

We add equations (2) and (3).

3x + 20x + 4y - 4y =  - 36 + 128

23x = 92

Divide both sides by 23

\frac{23x}{23}  =  \frac{92}{23}

x = 4

Put x=4 into equation (1).

10(4)+2y = 64

40+2y = 64

2y = 64 - 40

2y = 24

\frac{2y}{2}  =  \frac{24}{2}

y = 12

The solution is (4,12)

6 0
3 years ago
Is it c or d ?im confused on this question
sladkih [1.3K]
It’s D, when lines are perpendicular, the slopes of the lines are opposite reciprocals.
8 0
3 years ago
What is the area of this<br> parallelogram?
saveliy_v [14]

Answer:140ft2

Step-by-step explanation: area= base times height

                                             Area=14ft . 10ft

                                             Area=140ft2

8 0
2 years ago
So I have another math question that involves the same problem and so is 7 + 7x the same as 7x+ 7 i think it is but i'm not sure
BartSMP [9]

Answer:

it is

Step-by-step explanation:

because it addition it doesn't matter which way you put it

6 0
1 year ago
Read 2 more answers
8.5(4+3h)-h simplified
nikklg [1K]

Answer:

34+24.5h

Step-by-step explanation:

8.5(4+3h)-h\\\\=8.5(4)+8.5(3h)-h\\\\=34+25.5h-h\\\\=34+24.5h

4 0
3 years ago
Read 2 more answers
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