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Ksenya-84 [330]
3 years ago
6

Х+ 2y = -1 2x – Зу = 12

Mathematics
1 answer:
yarga [219]3 years ago
4 0
Use substitution method
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X+y=1<br> x+3y=9<br><br> Solve plzzzzzzzzzzzzzzzzzzzz
katovenus [111]

Answer:

x = - 3

y = 4

Step-by-step explanation:

x + y = 1 | (-3)

x + 3y = 9

- 3x - 3y = - 3

   x + 3y = 9

_____________

- 3x + x = 9 - 3

- 2x = 6

2x = - 6

x = - 3

- 3 + y = 1

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8 0
2 years ago
Marcus wants to buy a PS5 and some digital games. The console cost $725 and he plans to buy games that cost $45. He only has $98
wariber [46]
I don’t know your question sooo I’m just going to go based on what I know.

980 - 725 = 225
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In the end you can only buy about 3 games with $40 left
7 0
3 years ago
aneesha travels at a rate of 50 miles per hour .Morris is taveling 3 feet per second less then aneesha .which is the best estima
Eddi Din [679]
3 feet per second is equivalent to 2.04545 miles per hour
7 0
3 years ago
A rectangular field has an area of 1764 square meters. The width of the field is 13 meters more than the length. What is the per
sveticcg [70]

Answer:

170m

Step-by-step explanation:

The answer to the above question is letter d which is 170 m. To get the 170 m, kindly check the below solution: 

x^2 + 13x = 1764 so x = -49 and 36, we take 36 as its the positive value. And the other side is 49. Now use 2(l+b) to find perimeter. You get (36+49)*2 = 170

4 0
3 years ago
4x2 minus 20+48 factorise this polynomial completely
bulgar [2K]

Answer:

36

Step-by-step explanation:

With no parenthesis

7 0
3 years ago
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