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2 years ago

Bonjour, aidez moi svp .c'est sur la 1er guerre mondiale 1914

Mathematics

1 answer:

Nikitich [7]2 years ago

6 0

WHAT IS THIS LANGUAGE ? PLEASE TRY TO USE ENGLISH !

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-x + 2y = 3 2x – 3y = -6

s2008m [1.1K]

Answer:

x = -3

y = 0

Step-by-step explanation:

Given equations :- 

-x + 2y = 3 ....... ( i )

2x - 3y = -6 ....... ( ii )

From ( i ) 

-x + 2y = 3

-x = 3 - 2y

x = 2y - 3 ........ ( iii )

From ( ii ) 

2x - 3y = -6

2x = -6 + 3y

$x = \frac{ - 6 + 3y}{2}$

........ ( iv )

Equating ( iii ) and ( iv )

x = x

$2y - 3 = \frac{ - 6 + 3y}{2}$

4y - 6 = -6 + 3y

4y - 3y = -6 + 6

y = 0

Putting value of y in ( iii )

x = 2y - 3

x = 2 ( 0 ) - 3

x = -3

4 0

2 years ago

What is W in this equation -w–11≤w–5

zhannawk [14.2K]

Step-by-step explanation:

-w - 11 < or = w - 5

-2w - 11 < or = -5

-2w < or = -16

w > or = -8

5 0

3 years ago

[36 + (3 x 2)] ÷ 6 can any one tell me the ans

Brilliant_brown [7]

Answer:

6+x

Step-by-step explanation:

hope this helps

3 0

2 years ago

It's said to say my question, but it's in the pic, so I don't know what to say. But thanks

BARSIC [14]

Answer: A, or 0.2x

Step-by-step explanation:

To figure how expressions and percent's match up, replace the x with an easy number. For example, I use 4.

20% of 4 is 0.8, and 4 x 0.2 is also 0.8

Therefore, the expression to represent that percentage is A.

Also, the other answers were WAYYY off.

B, or x - 20 is flawed since x could be anything.

C, is also flawed in the same way.

And D makes -76.

A is the only sensible one and is proven to work.

Hope this helped!

-Nick

3 0

2 years ago

Find all solutions of the equation in the interval [0, 2π). (enter your answers as a comma-separated list. if there is no soluti

lawyer [7]

0, π/2, π, 3π/2
__________

5 0

3 years ago