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Agata [3.3K]
3 years ago
13

URGENT!!!!

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
5 0

Answer:

Write a system of equations

Step-by-step explanation:

2x + y = 15

3x - y = 20

5x = 35

x = 7

2(7) + y =15

y = 1

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Y = –x + 4 in standard form
kompoz [17]

Answer:

x-y=4

Step-by-step explanation:

y=x−4

The standard form of a linear equation is

Ax+By=C.

Rewrite the equation with the sides flipped.

x−4=y

Move all terms containing variables to the left side of the equation.

Tap for more steps...

x−y−4=0 Add 4

to both sides of the equation.

x−y=4

(hope this helps can i plz have brainlist :D hehe)

7 0
3 years ago
Out of the three answers, which one is correct?<br> I would also appreciate an explanation
cricket20 [7]

Answer:

69

Step-by-step explanation:

All angles in a triangle = 180°

35 + x + (x+7) = 180

42 + 2x = 180

2x = 138

x = 69

Hope this helps!

7 0
2 years ago
Find the value of x and y<br><img src="https://tex.z-dn.net/?f=2x%20%2B%205y%20%3D%20%20-%205%20%5C%5C%20%20-%208x%20-%201y%20%3
Gemiola [76]

Answer:

(x,y)=(0,-1)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
6. Line a: y - 3x = 4<br> Line b: y = 3x + 5<br> Line c: y - 4x = 3<br><br> Which lines are parallel
kramer

Answer:

Line a and b

Step-by-step explanation:

6 0
2 years ago
The population is decreasing at a rate of 5% per year. If the population is 30,000 today, what will the population be in 12 year
Lera25 [3.4K]

Answer:12,000

Step-by-step explanation:

.05*30,000=1,500

1,500*12=18,000

30,000-18,000=12,000

5 0
3 years ago
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