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2 years ago

8(x-a) = 2(2a - x). Solve for. X

Mathematics

2 answers:

Mariulka [41]2 years ago

8 0

Hey! Your answer would be x = 6a/5

Serjik [45]2 years ago

4 0

Answer:

x = 1.2a

Step-by-step explanation:

Step 1: Add 2x to both sides.

−8a+8x+2x=4a−2x+2x

−8a+10x=4a

Step 2: Add 8a to both sides.

−8a+10x+8a=4a+8a

10x=12a

Step 3: Divide both sides by 10.

10x / 10 = 12a / 10

Answer:

x = 1.2a

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professor190 [17]

Answer:

120i

Step-by-step explanation:

;i × i = -1....so hence

4i × (-5i) = -20 i^2...which is -20(-1) = 20....

then you multiply with 6i

20(6i) = 120i

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3 years ago

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2 years ago

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Calculating Profit Using this table, calculate the profit at each level of bicycle production. One bike: -$ Two bikes: $ Three b

leonid [27]

Answer:

1~30

2~3

3~40

4~70

5~90

6~90

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Step-by-step explanation:

subtract the total revenue from the total cost

8 0

3 years ago

Which expressions are equivalent to this expression?

Lyrx [107]

Answer:

Option B

Option C

Option D

All of these are correct

Step-by-step explanation:

Option B is correct because:

2x + 1 + 2x + 3 = 4x + 4

=> 4x + 4 = 4x + 4

Option C is correct because:

x + 3x + 4 = 4x + 4

=> 4x + 4 = 4x + 4

Option D is correct because:

2(2x + 2) = 4x + 4

=> 4x + 4 = 4x + 4

Option A is incorrect because:

4(x + 4) = 4x + 4

=> 4x + 16 ≠ 4x + 4

7 0

3 years ago

Which system of equations is represented by the matrix below

malfutka [58]

Answer:

Option A.

Step-by-step explanation:

The given matrix is

$\left[\left.\begin{matrix}4 & 5\\ 7 & -4\end{matrix}\right|\begin{matrix}-16\\ 23\end{matrix}\right]$

We need to find the system of equations which is represented by the matrix.

In the given matrix first row represents the first equation and second row represents the second equation of the system of equations.

Let two variables are x and y.

First column represents the coefficients of x and second column represents the coefficients of y.

Numbers on the right side of the matrix represents the numbers which are right side of the equations.

Now, the required equations are

$4x+5y=-16$

$7x-4y=23$

Therefore, the correct option is A.

4 0

3 years ago