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ser-zykov [4K]
3 years ago
9

What is the value of x in this system of equations? Express the answer as a decimal rounded to the nearest tenth.

Mathematics
1 answer:
Arturiano [62]3 years ago
4 0

Answer:

x = 11.2

Step-by-step explanation:

-5x - 12y = -8  

5x + 2y = 48

you can combine all like terms from both equations together:

0x-10y=40

simplified:

-10y=40

y=-4

now you plug in the value of y into either equation:

5x+2(-4)=48

simplify

5x-8=48

add 8

5x=56

divide by 5

x=56/5=11.2

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2 companys are in a leage together.
Ludmilka [50]

Answer:

I believe it would be 9 hours for company 1, and 10 for company 2

Step-by-step explanation:

30 x 9 = 270 (+ the first 20) =290

25 x 10 = 250 (+ the first 40) =290

3 0
3 years ago
Read 2 more answers
5x-6y=-25 and 4x-3y+20=0 How many solutions does the system have?
natta225 [31]
It has only 2 solutions
8 0
3 years ago
How do you solve for 5/6w = 2/3 (the answer is w= 4/5) I just don’t know how to show it.
Readme [11.4K]

Answer:

5/6w=2/3

5/6(4/5)=2/3

20/30=2/3

20/30=10/15=2/3=2/3

Proof:

5/6w=2/3

6/5*5/6w=2/3*6/5

30/30w=2/3*6/5

w=12/15=4/5

Hope this helps ;) ❤❤❤

6 0
3 years ago
Select two statements that are true about the equation y+4=-8(x-2)
bezimeni [28]

Answer:

Step-by-step explanation:

y + 4 = -8(x - 2)

I dont know the statements that u have but maybe I can guess one...or two

slope = -8

points used were : (2,-4)

y + 4 = -8(x - 2)

y + 4 = -8x + 16

y = -8x + 16 - 4

y = -8x + 12 ............slope intercept form

8x + y = 12 .......standard form

x intercept = (3/2,0)

y intercept = (0,12)

any of that answer ur question ?

5 0
3 years ago
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Triangle Numbers are generated by creating trianglesof progressively larger size. Example include pinswhen bowling or balls when
iris [78.8K]

for the first term:

n= 1 there is 1 item

n=2 there are 2+1 = 3 items

n = 3 there are 3+2+1 = 3+2 = 6 items

n = 4 there are 4+3+2+1 = 4+6 = 10 items

We are adding the "n" term each time

n = 5 10+5 = 15

n= 6 15+6 = 21

n = 7 21+7 = 28

n = 8 28+8 = 36

There would be 36 items in the 8th step

4 0
1 year ago
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