All categories

3 years ago

5x-3-2x=18-4x Please Explain

Mathematics

2 answers:

Hoochie [10]3 years ago

7 0

Answer:

x = 3 i promise that's the right answer

Step-by-step explanation:

irga5000 [103]3 years ago

3 0

Answer:

x=3

Step-by-step explanation:

Step #1. Simplify what you've been given

5x-3-2x=18-4x

5x-2x=3x

3x-3=18-4x

Step #2. Add 4x to both sides

3x+4x-3=18

7x-3=18

Step #3. Add 3 to both sides

7x=18+3

7x=21

Step #4. Divide both sides by 7

x=21/7

x=3

You might be interested in

Prove that the conjecture is false by providing a counter example.

Bas_tet [7]

Answer:

Any negative number would be a counterexample.

Step-by-step explanation:

Since negative numbers get smaller as you multiply them by a larger number, this would prove this conjecture false.

6 0

3 years ago

The Insure.com website reports that the mean annual premium for automobile insurance in the United States was $1,503 in March 20

stira [4]

Answer:

a) Option A)

$H_{0}: \mu \geq 1503\\H_A: \mu < 1503$

b) Point estimate of difference = -78

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $1,503

Sample mean, $\bar{x}$ = $1,425

Sample size, n = 25

Sample standard deviation, s = $160

We have to carry a hypothesis test that the mean annual premium in Pennsylvania is lower than the national mean annual premium.

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu \geq 1503\text{ dollars}\\H_A: \mu < 1503\text{ dollars}$

b) Point estimate of the difference between the mean annual premium in Pennsylvania and the national mean

Point estimate of difference =

Mean annual premium in Pennsylvania - National mean

$\text{Point estimate} = \bar{x} - \mu = 1425 - 1503 = -78$

Thus,

Point estimate of difference = -78

5 0

4 years ago

Hi! can someone help me with this please, i don’t really get it and need help. thanks so much

Gennadij [26K]

B. 18.7… each tic is worth .10

5 0

3 years ago

Read 2 more answers

What is the smallest number that rounds to 30,000

jenyasd209 [6]

Answer:

295000

Step-by-step explanation:

hope this helps

4 0

3 years ago

Identify the domain and range of y=[[x]]+2

frez [133]

Domain = R
Range = R ....

6 0

3 years ago

5x-3-2x=18-4x Please Explain​

5x-3-2x=18-4x Please Explain