3 years ago

I need help with these questions fast hury

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

4 0

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-3х + бу = -27<br> 3х – бу = 27

Gwar [14]

Step-by-step explanation:

-3x + 6y = -27 |-1×|

3x - 6y = 27 |1×|

3x - 6y = 27

Two equations are similar.

X,Y element R

3 0

2 years ago

the diagonals of parallelogram ABCD intersect at point O. If segment AC is a diagonal and AO = 5, then what is AC

gavmur [86]

9514 1404 393

Answer:

Step-by-step explanation:

The diagonals of a parallelogram bisect each other. That is, point O is the midpoint of AC. If AO = 5, then OC = 5 and AC = 5+5 = 10.

8 0

3 years ago

Collin wants to solve this system of equations. Which number can he multiply the first equation by so that when the two equation

siniylev [52]

If u multiply the first equation by -4, u get -2x - y = -20

and when u add the 2 equations..
-2x - y = -20
2x + 3/8y = 5
-----------------
0 - 5/8y = -15.....u notice that the x terms r eliminated.

4 0

3 years ago

Read 2 more answers

Can you guys distribute 7(4y+5)=19y+8 and figure out how many solutions this problem has plz and thank you

Alik [6]

It should only have one solution.
After distributing, you have the equation
$28y + 35 = 19y + 8$
Subtract applicable things.
$9y = -27$
divide both sides by 9.
$y = -3$

therefore the solution is
$y = -3$

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3 years ago

To solve the system of linear equations 3 x minus 2 y = 4 and 9 x minus 6 y = 12 by using the linear combination method, Henry d

ANEK [815]

This lol anyways it’s the moon because the sun carried it

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3 years ago