Mathematics, 15.10.2019 23:30 veronica25681

Moira solved a problem on the board. what error did moira make and how can she correct it? 12x + 10 = 54 – 10x 12x + 10 – 10 = 54 – 10x – 10 12x = 44 – 10x 12x – 10x = 44 – 10x + 10x 2x = 44 x = 22

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Moira didn't add 10x to both sides of the equation in the fourth step she applied (this is: 12x - 10x = 44 - 10x + 10x ).

She can correct it applying the Addition property of equality and add 10x to both sides of the equation then she must apply the Division property of equality (See the procedure below).

Step-by-step explanation:

Given the equation:

12x + 10 = 54 - 10x

The steps to solve it are:

1. According to the Subtraction property of equality, you we can subtract 10 from both sides of the equation:

$12x + 10-10 = 54 - 10x-10\\\\12x = 44 - 10x$

2. Based on the Addition property of equality, you we can add 10x to both sides of the equation:

$12x +10x= 44 - 10x+10x\\\\22x=44$

3. Finally, applying the Division property of equality, we must divide both sidesby 22:

$\frac{22x}{2}=\frac{44}{22}\\\\x=2$

Therefore, she made an error in fourth step she applied:

12x - 10x = 44 - 10x + 10x

Because she didn't add 10x to both sides of the equation.

She can correct it applying the Addition property of equality and add 10x to both sides of the equation and then she must apply the Division property of equality (As you can observe in the procedure shown above).

Answer from: doggosbepis

Moira didn't add 10x to both sides of the equation in the fourth step she applied that is

12x-10x = 44-10x+10x

Step-by-step explanation:

Given :

12x +10=54-10x

Solution :

Given that : 12x +10=54-10x

Now,

12x +10 +10x=54

22x = 54 -10

22x = 44

x=2

Moira didn't add 10x to both sides of the equation in the fourth step she applied that is

12x-10x = 44-10x+10x

For more information, refer the link given below

link

Answer from: Quest

if a = 1, and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

Square root of a^6b times, cube root of a^2b^7

Answer from: Quest

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

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Moira solved a problem on the board. what error did moira make and how can she correct it? 12x + 10...

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