Which best explains why the equation 4x+5=4×-1 has no solution

Answers

Answer 1

Answer: 4x + 5 = 4x - 1

4x - 4x= -1 - 5

0 = -6.

This statement is not correct.

So there is no solution.

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-2 (x-7)=-(2x+5) solve for x
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What is the value of the expression "eight more than three times the difference of four and a number" when n =3?□44□19 □17 □11
A rope attached to the top of a tent is staked into the ground.The rope is 4.5 ft long.The angle formed by the rope and the ground is 46 degrees.How far from the center of the base of the tent is the rope staked.
What is half of a quarter of 400?

How to do do this question I don't know how to do

Answers

Hello,

Let denote
h the number of men in the concert hall (before leaving)
f the number of women in the concert hall (before leaving)

1/5 h quit =60/2
15/100 f =60/2

h=30*5=150
f=30*100/15=200

Tey were 150+200 = 350 humans in the hall.
(why h : homme, f:femme you may call m and w)

If AB = 4x +10, BC = 2x +3 and AC= 9x - 15 find AC. and show work plzz !!!!

Answers

Answer:

Step-by-step explanation:

AB + BC = AC

4x + 10 + 2x + 3 = 9x - 15

6x + 13 = 9x - 15

6x + 13 + 15 = 9x

6x + 28 = 9x

3x = 28

x = 9 1/3 = 28/3

AC = 9 * 28/3 - 15

AC = 3 * 28 - 15

AC = 84 - 15

AC = 69

A 36 inch by 48 inch poster is reduced to an image that is 3 in by 4 inch in size. What is the scale factor?A: 1/3
B: 1/6
C: 1/9
D: 1/12

Answers

The correct answer for the question that is being presented above is this one: "D: 1/12."
The original dimension is 36 x 48.
The scaled dimension is 3 x 4.

The ration between 3 and 36 ; 4 and 48 is reduced to 1/12.
So the scale factor is 1/12.

Solve for n
3n-2=2n
N=

Answers

Answer:

Hey there!

3n-2=2n

n-2=0

n=2

Let me know if this helps :)

3n - 2 = 2n

n =?

3n - 2n = 2

n = 2 ✔️

Increase £84 by 3%
thank you!

Answers

If you would like to increase £84 by 3%, you can calculate this using the following steps:

3% * £84 = 3/100 * 84 = £2.52

£84 + £2.52 = £86.52

The correct result is £86.52.

Spinner goes 1-4. Jose spins the spinner 8 times. In those 8 spins, the arrow never lands on 3. Based on this information, should Jose be concerned that the spinner is unfair? Explain.

Answers

If the spinner was fair, the probability of landing on 3 in a single spin is 1/4. The probability of never landing on 3 in 8 spins is (3/4)^8 = 0.1. The probability of landing on 3 at least once in 8 spins is 1 - 0.1 = 0.9.
Therefore Jose should be concerned that the spinner is unfair.

Well this is a more complicated question than it may seem. The laws of probability are based on observations whose number is very large or actually as the number of observations approaches infinity. So on the one hand, you should be concerned that you get 0/8 to land on 3. However, 42/500 land on 3 so your ratio has improved. It's not near 125 but it's also not 0. If it remained at 0, you would begin to be concerned and rightly so. Perhaps if you did 5000, you would be less concerned as the ratio improved and got closer to 1/4 of the observations. So at this point I don't think you have enough information to determine that the spinner is unfair.

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