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3 years ago

Have this done correctly for brainliest

Mathematics

2 answers:

Levart [38]3 years ago

6 0

Answer:

4) y=7-2x

6) 20x+5y=15

5(4x+y)=15

4x+y=15/5

4x+y=3

y=3-4x

8) 6x+8y=-6

2(3x+4y)=-6

3x+4y=-3

y=(-3-3x)/4

10) 16x+9=9y -2x

16x+2x=9y+9

18x=9y+9

18x=9(y+1)

2x=y +1

y=2x-1

Step-by-step explanation:

this is the correct answer

OlgaM077 [116]3 years ago

3 0

4.)y=-2x+7
6.)y=-4x+3
8.)y=3/4x+3/4
10.)y=2x+1
12.)y=16x-12

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A group of students are planning a mural at a wall the rectangular wall has dimensions of (6x+7) by (8x+5) and they are planning

zvonat [6]

Answer: $46x^2+73x+15$

Step-by-step explanation:

The area of a rectangle can be calculated with the formula:

$A=lw$

l: the length of the rectangle.

w: the width of the rectangle.

The area of the remaning wall after the mural has been painted, will be the difference of the area of the wall and the area of the mural.

Knowing that the dimensions of the wall are $(6x+7)$ by $(8x+5)$ , its area is:

$A_w=(6x+7)(8x+5)\\\\A_w=48x^2+30x+56x+35\\\\A_w=48x^2+86x+35$

As they are planning that the dimensions of the mural be $(x+4)$ by $(2x+5)$ , its area is:

$A_m=(x+4)(2x+5)\\\\A_m=2x^2+5x+8x+20\\\\A_m=2x^2+13x+20$

Then the area of the remaining wall after the mural has been painted is:

$A_{(remaining)}=A_w-A_m\\\\A_{(remaining)}=48x^2+86x+35-(2x^2+13x+20)\\\\A_{(remaining)}=48x^2+86x+35-2x^2-13x-20\\\\A_{(remaining)}=46x^2+73x+15$

8 0

3 years ago

Is the point (2,14) a solution of the equation y = 5x - 3?

tresset_1 [31]

Answer: No it is not

4 0

3 years ago

PLEASE HELPPP Which expression is equivalent to

Anettt [7]

Answer:

Fourth option

Step-by-step explanation:

Given the expression in the picture:

Apply Power of Power Rule

$\frac{64g {}^{9} h {}^{6}k {}^{12} }{8g {}^{3} h {}^{2} }$

$8g {}^{6} h {}^{4} k {}^{12}$

The left side of the equation option had this in the fourth option so the fourth option is right

7 0

3 years ago

Evaluate when x = -3 and y= -1: x-xy=

LenKa [72]

-3-(-3)(-1)= 0, so 0 is the solution

5 0

3 years ago

Read 2 more answers

a recipe calls for 2 2/3 cups of flour every 1/6 cup of cinnamon.If Richard has 1 cup of cinnamon already in the recipe, how man

Mashcka [7]

Step-by-step explanation:

2 2/3

=>If 8/3 = 1/6

x =1

1/6x = 8/3 ( Divide both sides by 1/6 )

___ ___

1/6 1/6

(By cross-multiplying the numerators and denominators)

=> 1×6 8×6

___ x = ___

6×1 3×1

Cancelling out , we have

x = 8×2

____ = 8×2 = 16

1 × 1

The final answer becomes 16

Hope it helps.

6 0

3 years ago

Have this done correctly for brainliest​

Have this done correctly for brainliest