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Korvikt [17]
3 years ago
6

A square has a side length of 6x+2. a rectangle with width 3x+1 has the same area as the square. what is the length of the recta

ngle?
Mathematics
1 answer:
ioda3 years ago
4 0
Let A the area of the square, Ar the area of a rectangle, l length and w  width, s sides.

A=Ar

A= s²

Ar= lw

A= (6x+2)²

(6x+2)²= l w

(6x+2)²= l (3x+1)

2(3x+1)(6x+2)= l (3x+1)

l= 2(6x+2)= 12x+4 

so length is 12x+4
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(2x - 4)+ ( x + 9)<br> A. 3x+5<br> B.x+5<br> C.3x-13<br> D.x+9
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4 0
2 years ago
Y=6x – 11<br> -2x – 3y =-7
Eva8 [605]

Answer:

x=2   and   y=1

Step-by-step explanation:

1). Plug the y value into the second equation. It will look like the following afte you plug in what y equals:

              -2x-3(6x-11)=-7

2). Then, you distribute the "-3" to all the terms inside the parenthesis.

              -2x-18x+33=7

3). Then, you subtract the positive 33 from both sides to try to get the x alone on one side.

              -2x-18x=-40

4.) Then, you combine all of the terms containing an x.

              -20x=-40

5). Finally, you divide both sides by -20 and the outcome is x=2.

6).  Hold up...we ain't done yet..

7).  Next, you have to plug the x back into the either equation to get the outcome of what y will be, but for this purpose I will plug it back into the first equation.

              y=6(2)-11

8). I will then distribute the 6 into the all the terms in the parenthesis and then it will look like this.

              y= 12-11

9). Do the math...and the answer is y=1.

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3 years ago
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