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Tju [1.3M]
3 years ago
6

Simplifying algebraic expressions 3c + 6( -2 - 7c)

Mathematics
2 answers:
krok68 [10]3 years ago
8 0

Answer:

-12 -39c

Step-by-step explanation:

3c + 6( -2 - 7c)

Distribute

3c -12 -42c

Combine like terms

-12 -39c

max2010maxim [7]3 years ago
4 0

Answer: -39c-12

Step-by-step explanation:

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A line passes through the points (–3, –4) and (6, 2)
erastova [34]

9514 1404 393

Answer:

  (3, 0)

Step-by-step explanation:

The line through these points intersects the x-axis at x=3.

The x-intercept is (3, 0).

_____

The x-intercept can be computed from ...

  x-intercept = x1 -y1(x2 -x1)/(y2 -y1)

  = -3 -(-4)(6-(-3))/(2-(-4)) = -3 +4(9/6) = -3 +6

  x-intercept = 3

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Here, it is simple enough to plot the points and see where the line crosses the x-axis.

5 0
3 years ago
What is the product when x-5 is multiplied by2x+3
mote1985 [20]

Answer:

13

Step-by-step explanation:

1. Put 5 in for x. 2×5+3

2.10+3

3.13

3 0
4 years ago
Find the expression that represents the<br> value of v.<br> 2(v - 8) = n+y
Sophie [7]

Answer:

v = \frac{n+y+16}{2}

Step-by-step explanation:

2(v-8) = n+y

Distribute

2v-16 = n+y

Move -16 to the other side

2v = n+y+16

Divide everything by 2

v = \frac{n+y+16}{2}

4 0
2 years ago
Read 2 more answers
The length of a rectangle is 10 inches longer than the width. The perimeter is 56 inches. Find the length and the width of the r
goldfiish [28.3K]

Answer:

Length=19\,inches\\\\Width=9\,inches

Step-by-step explanation:

Let, the length of the rectangle be 'L',

Width of the rectangle be 'W'

L=(W+10)\,inches

Perimeter of the rectangle= 56\,inches

Perimeter of the rectangle= 2(Length+Width)

                     56=2(W+10+W)\\\\\dfrac{56}{2} =W+10+W\\\\28=2W+10\\\\28-10=2W\\\\18=2W\\\\W=\dfrac{18}{2}\\\\ W=9\,inches

As,

     L=(W+10)\,inches

     L=9+10\\\\L=19\,inches

Length=19\,inches\\\\Width=9\,inches

7 0
4 years ago
5x2 + 3y2 = 68<br> 4x2-2y2 = -16
AlladinOne [14]

Step-by-step explanation:

multiply ,1 st x 2 and 2nd x 3

so,

10 X2 + 6y2 = 136

12 X2 - 6y2 = - 48

________________

22 X 2 = 8 8

X 2 = 88 / 22

X2 = 44

X= ± 2✓ 11

y 2= 96

y = ± 4✓ 6

6 0
3 years ago
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