All categories

3 years ago

Amaya used these steps to solve the equation 8x+4=9+4(2x−1). Which choice describes the meaning of her result, 4=5?

Mathematics

2 answers:

Anna007 [38]3 years ago

7 0

Answer:

No values of x make the equation true.

timofeeve [1]3 years ago

4 0

Answer:

No value of x makes the equation true.

Step-by-step explanation:

Here are the choices which are missing in the question:

a) Amaya made a mistake because 4 is not equal to 5

b) No value of x make the equation true.

c) All value of x make the equation true.

d) The solution is x= 4 or 5

Given equation is $8x+4=9+4(2x-1)$

Now, solving the equation:

$8x+4=9+4(2x-1)$

distributing 4 with both 2x and -1

⇒ $8x+4= 9+8x-4$

⇒ $8x+4= 5+8x$

Subtracting both side by 8x

∴ 4=5

The result indicate that equation has the same result and x has no value.

You might be interested in

(1) If P-Q-R, (PQ) = 3, I(PR) = 12 then find I(QR).

Reptile [31]

Is porque P-Q-R (QR) =3, I(PR)= 12 then find I (QR)

7 0

3 years ago

In parallelogram ABCD measure angle A=(2x) and measure angle B=(5x+5). what are the measures of the angles of the parallelogram

iragen [17]

Opposite angles are equal, so we know that C=2x and D=5x+5 as well.

The sum of the interior angles of any quadrilateral is 360, so we have

$2(2x+5x+5)=2(7x+5)=360 \iff 7x+5=180 \iff 7x=175 \iff x=25$

So, the measures of the angles are

$2x=50,\quad 5x+5=130$

7 0

3 years ago

What is the least common denominator ( LCD ) of −1 5/6 and −1 7/9 ?

Marina CMI [18]

Answer:

Step-by-step explanation:

we start to write a few iterations of 6 and 9:

6, 12, 18, 24, 30, 36, 42, 48, 54, 60, ...

9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ...

the LCD is the least repeating number in both sequences. It is 18

6 0

3 years ago

The manager of a warehouse would like to know how many errors are made when a product's serial number is read by

Inessa05 [86]

Answer:

14.625

Step-by-step explanation:

As per the situation the solution of mean and standard deviation change, based on all 12 samples is represented below:-

Mean of all 12 samples is shown below:-

$= \dfrac{Sum \ of \ all \ the \ observations}{Total \ number \ of \ observation}$

$= \dfrac{36+14+21+39+11+2+33+45+34+17+1+29}{12}$

So, the Mean = 23.5

and now,

The Standard deviation of all 12 samples is shown below:-

$= \sqrt{\frac{1}{12}} (36-23.5)^2+(14-23.5)^2+(21-23.5)^2+(39-23.5)^2+(11-23.5)^2+(2-23.5)^2+(33-23.5)^2+(45-23.5)^2+(34-23.5)^2+(17-23.5)^2+(1-23.5)^2+(29-23.5)^2}]$

$\sigma$ = 14.625

Therefore, we used the above equation to reach the answer.

7 0

3 years ago

X elevado a 2 -5x+6 algebra

ikadub [295]

I hope this helps you

x^2-5x+6

x -3

x -2

(x-3)(x-2)

8 0

3 years ago