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timama [110]
3 years ago
8

Find the value of x.

Mathematics
1 answer:
spin [16.1K]3 years ago
4 0

Answer:

Step-by-step exg

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Ify is 6 when x is 3 and y varies directly with x, find y when x is 8.
Contact [7]
Y would be 16,

y=kx
6=3k
2=k
y=2(8)
y=16
4 0
3 years ago
Len has 3 strips of construction paper. Each strip is the same size and a different color-red, yellow, and pink. He tapes the st
Helen [10]

Answer:

2/6

Step-by-step explanation:

Each of the rectangle strips are taped together to form a rectangle. Therefore 1 of the third of the rectangle would be red, this means that 1/3 of the rectangle would be red color. The rectangle is then divide into sixths, this can be achieved by dividing each of the taped strip into 2.

Therefore 2 of the sixths rectangle would be red in color, Hence the fraction of the rectangle that would be red is given as 2/6

7 0
2 years ago
Solve each system using substitutions<br> Y+4=x<br> -2+ Y=8
klemol [59]
-2 + Y = 8
Y = 10
Plug in Y to the first equation, 10 + 4 = X
X = 14
3 0
3 years ago
Read 2 more answers
Solve by completing the square.
enot [183]

Answer:

x^2 -8x -5 = -3

x^2 -8x -2 = 0

We complete the square by:

1) Moving the "non X" term to the right:

x^2 -8x  = 2

2) Dividing the equation by the coefficient of X²

The coefficient of x is 1 so we don't do anything

3) Now here's the "completing the square" stage in which we:

      • take the coefficient of X

that is -8

     • divide it by 2

-8 ÷ 2 = -4

     • square that number

-4*-4 = 16

     • then add it to both sides of the  equation.

x^2 -8x +16 = 2 +16

That becomes

(x -4)^2 = 18

we take the square root of both sides:

(x -4) = sqr root (18)

x1 = sqr root (18) +4

AND

(x+4) = sqr root (18) -4

x1 =  sqr root (18) +4 = 4.2426406871  + 4 = 8.2426406871

x2 = sqr root (18) -4 =  = 4.2426406871  - 4 = .2426406871

       

Step-by-step explanation:

8 0
3 years ago
30 POINTS!!!!!
Oksi-84 [34.3K]

C.

5(4x – 3) + 13x – 6

20x-15+13x-6

adding common

33x-21

3 0
2 years ago
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