Which expressions are equivalent to this expression? 3(n+4)


WILL MEDAL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Answer 1
Answer: We will start by expanding (or multiplying through) with 3(n+4)

We get:
3n + 12
3n can be expanded to equal 2n+n, so the correct answer will be
2n + 12 + n

Simply add the options together and see what one matches 3n + 12

2n + 12 + n = 3n + 12, which in turn equals 3(n+4)

ANSWER: 2n + 12 + n
Answer 2




Step-by-step explanation:

I took the test on K12 and this was the right answer

Related Questions


Find the factor. 5y^2+4y-1=(5y-10)(___)


= 5y^2 + 5y - y - 1
= 5y(y+1) - 1(y+1)
= (y+1)(5y -1) or
= (5y-1)(y +1)

(5y-1)(y +1)

A rational expression is undefined when the denominator is zero true or false ?


The answer is true, any time the denominator of a rational expression is 0, it is undefined. A rational expression is something that can be written as x/y, where x and y are both integers and y is not equal to zero. The denominators 0 are expressly prohibited by this notion of a reasonable expression.

What is a rational Expression?

Variable-filled fractions are rational expressions. Basis functions are used as the numerator and the denominator in rational expressions.

To put it another way, it has the format p(x)/q(x), where q(x) 0 and p(x) and q(x) are polynomials.

Because rational expressions are really fractions, we can treat them in the same manner as fractions.

To know more about the rational expression:


True A rational expression is undefined whenever its denominator is zero. By definition, a rational expression is an expression that can be in the form x/y where x and y are integers and y is not equal to zero. This definition of a rational expression strictly excludes denominators of zero.

What is the solution to the equation fraction 4 over 5 n minus fraction 1 over 5 equals fraction 2 over 5 n?



n = 0.5

Step-by-step explanation:

Equation according to given data:

                                                           (4/5)n - 1/5 = (2/5)n


(4/5)n - 1/5 = (2/5)n

Subtracting (4/5)n on both sides of equation:

= (4/5)n - 1/5 - (4/5)n = (2/5)n - (4/5)n

= - 1/5 = -2/5n

Multiplying -5/2 on both sides of equation:

= -1/5 . -5/2 = -2/5n . -5/2

= 5/10 = n

= n= 1/2 = 0.5

Equation: (4/5)n - 1/5 = (2/5)n


1. ((4/5)n - 1/5) - (4/5)n = ((2/5)n) - (4/5)n

2. -1/5 = -2/5n

3. -1/5/-2.5 = -2/5n/-2.5

Solution: n = 2/25 or 0.08


A copy machine makes 24 copies per minute. How long does it take to make 114 copies?


A copy machine makes 24 copies per minute is already given. So the question becomes easy because of this part. the only thing that needs to be noticed are the minute details given in the question, otherwise it is an absolutely simple problem.
24 copies can be copied by the copy machine in = 1 minute
114 copies will be copied by the machine in = (1/24) * 114 minutes
                                                                       = 114/24 minutes
                                                                       = 4.75 minutes
So the copy machine has the capacity to copy 114 copies in 4.75 minutes.
Random Questions
What theme is common to the two excerpts below? . . . His theory of running until he reached camp and the boys had one flaw in it: he lacked the endurance. Several times he stumbled, and finally he tottered, crumpled up, and fell. When he tried to rise, he failed. He must sit and rest, he decided, and next time he would merely walk and keep on going. As he sat and regained his breath, he noted that he was feeling quite warm and comfortable. He was not shivering, and it even seemed that a warm glow had come to his chest and trunk. And yet, when he touched his nose or cheeks, there was no sensation. Running would not thaw them out. Nor would it thaw out his hands and feet. Then the thought came to him that the frozen portions of his body must be extending. He tried to keep this thought down, to forget it, to think of something else; he was aware of the panicky feeling that it caused, and he was afraid of the panic. But the thought asserted itself, and persisted, until it produced a vision of his body totally frozen. (Jack London, To Build a Fire) Presently the boat also passed to the left of the correspondent with the captain clinging with one hand to the keel. He would have appeared like a man raising himself to look over a board fence, if it were not for the extraordinary gymnastics of the boat. The correspondent marvelled that the captain could still hold to it. They passed on, nearer to shore—the oiler, the cook, the captain—and following them went the water-jar, bouncing gayly over the seas. The correspondent remained in the grip of this strange new enemy—a current. The shore, with its white slope of sand and its green bluff, topped with little silent cottages, was spread like a picture before him. It was very near to him then, but he was impressed as one who in a gallery looks at a scene from Brittany or Algiers. He thought: "I am going to drown? Can it be possible? Can it be possible? Can it be possible?" Perhaps an individual must consider his own death to be the final phenomenon of nature."