1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
patriot [66]
3 years ago
12

7n - 4 = 31. what is the value of the n​

Mathematics
2 answers:
Trava [24]3 years ago
5 0
N=5. you can check your answer by doing 7(5)-4=31
7x5= 35
35-4=31
Gelneren [198K]3 years ago
4 0

Answer:

n = 5

Step-by-step explanation:

- Move all terms not containing  n  to the right side of the equation.

7n = 31 + 4

7n = 35

- Divide each term by  7  and simplify.

n = 5

i hope this helps :)

You might be interested in
The first three terms of a sequence are given. Round to the nearest
melamori03 [73]

Answer:

I'm sorry I don't know

Step-by-step explanation:

hopefully someone solves this!

3 0
2 years ago
Drag each figure to show if it is similar to the figure shown or why it is not similar
natita [175]

Answer:

In the given shapes above, we can see that all shapes have four sides.

Above geometrical shapes could be named as Rectangles, parallelogram or quadrilateral.

First two shapes are Rectangles.

Third is a parallelogram.

Fourth and fifth shapes are Rectangles again.

Also we can say all those shapes with four side as quadrilaterals. (Note: A quadrilateral has four sides.)

Below shown shape has only three sides in it.

It is called a triangle when a shape has three sided close figure.

So, we could drag : Not similar - Different Type of shape.

4 0
2 years ago
Use the expression 5a – 2b – 3 + 2b – 6a.
ella [17]

Answer:

5a + (-6a) + (-2b) + 2b + (-3) = -a -3 or -(a + 3) so first answer is correct because -(a + 3) is the same as -(3 + a)

Step-by-step explanation:

4 0
2 years ago
  (5 pt) Enter a number in the box to make this a true number sentence.  5 × (6 – 4) = (5 × 6) – (5 × )
Sloan [31]
5x+1(6-4) = +1(5x6)-(5x)
this would be a hard question to answer but i think i can do it ((( nNOTTTT))))
5 0
3 years ago
A company has two types of machines, type R and type S. Operating at a constant rate, a machine of type R does a certain job in
kozerog [31]

Answer: C.  6

Step-by-step explanation:

Given : Time taken by Machine R to do the job = 36 hours

Time taken by Machine S to do the job = 18 hours

Let x be the number of each type of machine to do the job.

Then , according to the question the required equation will be :-

\dfrac{x}{36}+\dfrac{x}{18}=\dfrac{1}{2}\\\\\Rightarrow\ x(\dfrac{1}{36}+\dfrac{1}{18})=\dfrac{1}{2}\\\\\Rightarrow\ \dfrac{x}{12}=\dfrac{1}{2}\\\\\Rightarrow\ x=\dfrac{12}{2}=6

Hence, the number of machines of type R were used =6

8 0
3 years ago
Other questions:
  • Y=x + 6 solve the system of equations using subtraction
    11·1 answer
  • The difference of w and 8 is at least 21.
    5·2 answers
  • What is the answer for x. x/2=9
    8·2 answers
  • Anyone know how to simplify a whole number into a mixed number or a improper fraction???
    13·1 answer
  • Mr. Lee mailed 3 packages. The greatest amount he paid to mail one of these packages was $3.60. The least amount he paid to mail
    13·2 answers
  • A pitcher of Kool-Aid uses one packet of flavoring, 1 cup sugar, and 8 cups of water. 1 cup of sugar = 200 grams. If the pitcher
    10·2 answers
  • Jayda is buying notebooks for school the cost of each notebook is $1.75 write an equation that shows the cost of Jada's notebook
    14·1 answer
  • Write an inequality that represents the real-world problem. Then select all that apply.
    14·2 answers
  • This is probably rly easy but need help asap
    14·2 answers
  • What is the ratio of my lawn if it is 4 meters by 4.5 meters
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!