3 years ago

HELP:( I know I’m slow and all asking all these question today but...

Mathematics

1 answer:

7nadin3 [17]3 years ago

4 0

Second answer

Step-by-step explanation:

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-5x+y=-3

serg [7]

(3)(-5x+y=-3)
(5)(3x-8y=24)

-15x+3y=-9
15x-40y=120

3y=-9
-40y=120

-37y=111
Divide both sides by -37

y=-3

To solve for x. Choose one equation from the given and plug what you get in Y.

I'll choose, -5x+y=-3
So, -5x+(-3)=-3
-5x=0
Divide both sides by -5
x=0/-5

Hope, this helps.

5 0

3 years ago

1/3+1/3x+8/3=-1/3(6x+11)

ivann1987 [24]

Answer:

x=-20/7 or -2.857

Step-by-step explanation:

bring like terms together in each side of the = side

then work the out

3 0

3 years ago

An unknown number y is 20 more than an unknown number x. The number y is also x less than 2. The equations to find x and y are s

zloy xaker [14]

Answer:

b)Add the equations to eliminate x.

Step-by-step explanation:

y= x+20

y= - x+2

Result of the addition: (-x cancels x)

2y = 22

y =11

11=x +20 -9 = x

11=9+2

11 = -9 +20

8 0

3 years ago

Please help find the anwser to question 1 and 2

grin007 [14]

16ft and 25ft sorry if i’m wrong

4 0

3 years ago

1. Thales, an ancient Greek mathematician, and philosopher used certain triangles to find the height of unknown objects. He wait

charle [14.2K]

An equilateral triangle.

all sides are the same so the higth of the object will be the same as length of the shadow.

7 0

3 years ago