Mathematics College

three times the difference of twice a number and 4 is 12. find the number​

Answers

Answer 1

Answer:

3 times the difference of a number and 4 equals 12.

Step-by-step explanation:

Answer 2
3(2x - 4) = 12
6x - 12 = 12
6x = 24
x = 4

The number is 4

Related Questions

Original: $30 new: $110

Answers

Answer:

It increases by 267 decrease.

Answer:

267%

Step-by-step explanation:

110 / 30 - 1

3.6666667 - 1

2.6666667 or 2.67

2.67 x 100

267%

The diameter of a circle is 3 meters. What is the circumference?

Answers

Answer:

C≈9.42m

Using any of this formulas

C=2πr

C=2πrd=2r

Solution:

C=πd=π·3≈9.42478m

helppppppppppppppppppppppppppppp

Answers

Your answer is 130 hope I could help!

What is the y- intercept of the line * 3y=5x+12

Answers

the y intercept is y= 4

Is my answer choice wrong or right?

Answers

Answer:

It is correct

Step-by-step explanation:

Gr8 job

Derek and his friend share two small pizzas Derek ate 7/6 of the pizzas which mixed number shows how much pizza Derek ate

Answers

1 1/6 that would be the mixed number of how much he ate....

Select the improper fraction that is not equivalent to the whole number 6

18/3
6/1
54/3
54/9

Answers

the one not equivalent to 6 as a whole is 54/3 as that equals 18.

Answer:

54/3=18

Step-by-step explanation:

18/3=6

6/1=6

54/9=6

Helppppppppppppppppp

Answers

The answer to the question is D.

I need help! Please show all the steps and work! :)

Answers

I don’t know tskskssososksosososkxx

HELP PLS MIGHT GIVE BRAINLIST BUT ONLY IF 2 PEOPLE ANSWER!

Answers

Answer:

t

t

f

t

f

Step-by-step explanation:

i hope po makatulong

20a. F

20b. F

20c. T

20d. T

PLEASEEEEE HELPP

Patty purchased rose bushes and geraniums for her yard. Patty spent $206 on 14
rose bushes and 12 geraniums. The price of a geranium is $5 less than twice the
cost of a rose bush. What is the cost of one rose bush?

Answers

9514 1404 393

Answer:

  $7

Step-by-step explanation:

Let r and g represent the costs of a rose bush and a geranium, respectively. The given relations are ...

  14r +12g = 206

  g = 2r -5

Using the second equation to substitute for g in the first equation, we have ...

  14r +12(2r -5) = 206

  38r -60 = 206

  38r = 266

  r = 266/38 = 7

The cost of one rose bush is $7.

please help!!! and show work!!

Answers

Answer:

x = 17

Step-by-step explanation:

area = L x W

45 = (x-2)(x-14)

45 = x² - 14x - 2x + 28

simplify:

x² -16x - 17 = 0

(x + 1)(x -17 ) = 0

x = -1    not applicable

x = 17

Proof:

(17-2)(17-14) = 45

15 x 3 = 45

45 = 45

7(5+2c)+3c I need help

Answers

Answer:

35 + 17c I hope this helps!! Plz give brainliest!!!

Step-by-step explanation:

7(5+2c)+3c

35+14c+3c

35+17c

The distance around the outside of an apartment is 0.3 mile. Keira ran 0.1 of the distance during her lunch. How far did she run?

Answers

Answer:

0.1

Step-by-step explanation:

A rectangular sheet of metal measures 8 inches by 10 inches. The metal is worth $3.00 per
square inch. How much is the sheet of metal worth?

Answers

Answer:

240$$

Step-by-step explanation:

find the area

A=LW

A=8x10

A=80

80x3=240

Identify the vertex of the graph. Tell whether it is a minimum or a maximum.

Answers

Answer:

Vertex = (-1, 2)

Maximum

Step-by-step explanation:

The middle point of the graph is at x coordinate -1 and the point is at the top while the graph slopes down so it is a maximum point and not a minimum point.

Find the difference.7/14−3/14= help

Answers

Answer: [tex]\frac{4}{14}[/tex]

Step-by-step explanation:

Let's take the given equation

[tex]\frac{7}{14}-\frac{3}{14}[/tex]

Let's also remember the bottom number (denominator) does not change or go away ever!

So we will subtract the top numbers (numerator) and we will get

[tex]\frac{4}{14}[/tex]

What is the mean for this list of numbers? 19, 22, 24, 45

Answers

Answer:

27.5

Step-by-step explanation:

To find the mean you basically just add all of the numbers then divide by how many there are.

So, for this problem, 19+22+24+45=110

110/4=27.5

Hope this helped!!

Can someone help me out with this problem

Answers

Answer:

Step-by-step explanation:

here's my face I just dyed my hair-​

Answers

Answer:

that looks nice

Step-by-step explanation:

the hair looks cool

Good morning help me out thank u

Answers

Answer:

25

Step-by-step explanation:

Using the Pythagorean theorem, we need to calculate

15^2+20^2=x^2, which simplifies to:

225+400=x^2,

625=x^2

and since 25^2 equals 625, the answer is AC=25  

Please need help thank you

Answers

I believe since 10 decimeters = 1 meter, then 3•10=30 which is the length of the blanket. Now we have to divide 30 by 3 to equal 10 which is how many stripes will be on the blanket

Fast Answer - 3x10 and 10

Raelyn spent $6.00 on butterfly stickers for her bathroom wall. Each sticker cost 1/10 of a dollar. how many stickers did Raeyln but?From the same store,Beth biught 1/4 the number of butterfly stickers Raeyln bought.How many butterfly stickers did Beth buy?​

Answers

Answer:

Raeyln bought 60 stickers, Beth bought 15 stickers

Step-by-step explanation:

simple math l.mao

The graphs below have the same shape. What is the equation of the red
graph?

Answers

Answer:

G(x)=(1-x)⁴

Step-by-step explanation:

Question 7 of 10
When you multiply a function by -1, what is the effect on its graph?
A. The graph flips over the yaxis.
O B. The graph flips over the line y= X.
O C. The graph flips over the xaxis.
SUBMIT

Answers

it should be C, im not 100% sure though.

Answer:

the answer is c because it is over xaxis

PLEASE HELP DUE IN 3 minutes

Answers

Answer: 10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

which of the following is not a function? ANSWER FAST PLEASE!!!

Answers

Answer:

D. cannot be an f(x)=y function.

Step-by-step explanation:

An f(x) = y function has to have a specific property - there can be only one value for the same x - and the value has to be the same every time.

D. gives us all xs equal to 9, but with different ys - hence it cannot be an f(x) = y function (it could be an f(y) = x function though, but I assume that's not "allowed" under the problem statement).

B has two equal xs, but both times y=0, so it doesn't make it an invalid function.

Suppose we want to formulate a 95% confidence interval for the population proportion and we would like our margin of error to be not greater than 0.04. We have no history with this characteristic, so we have no idea as to what the proportion might be. Conservatively, what is the minimum sample size we should anticipate using? (NOTE: Round up to the nearest whole number)

Answers

Answer:

The minimum sample size we should anticipate using is 601.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

We have no history with this characteristic, so we have no idea as to what the proportion might be.

This means that we use [tex]\pi = 0.5[/tex], which is when the largest sample size will be needed.

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

What is the minimum sample size we should anticipate using?

This is n for which M = 0.04. So

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]0.04 = 1.96\sqrt{\frac{0.5*0.5}{n}}[/tex]

[tex]0.04\sqrt{n} = 1.96*0.5[/tex]

[tex]\sqrt{n} = \frac{1.96*0.5}{0.04}[/tex]

[tex](\sqrt{n})^2 = (\frac{1.96*0.5}{0.04})^2[/tex]

[tex]n = 600.25[/tex]

Rounding up, 601

The minimum sample size we should anticipate using is 601.

"Debby" is a photographer. She sells small prints for$50 and large prints for $75. How many large prints did she sell?

Answers

she didn't sold any large print that is the price on how she sells the prints

I am so confused right now. will give brainlest to anyone how can solve this chicken scratch lol


1. Write an equation representing this hanger

2. find the value (or "weight) of one circle (w).

3. Explain how you found the value of one circle (w)

I really have no idea what any of this is​

Answers

Answer:

1. 25÷4w

2. w=6.25

3.I divided 25 by 4 to find w

Step-by-step explanation:

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