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
lawyer [7]
3 years ago
9

2(n-1)+ 4n= 2 (3n -1)

Mathematics
1 answer:
muminat3 years ago
6 0

Answer:

Infinitely many solutions.

Step-by-step explanation:

2 (n - 1) + 4n = 2 (3n - 1) Let's simplify this to solve it.

2n - 2 + 4n = 6n - 2 Distribute 2(n-1) and 2(3n-1)

2n + 4n - 2 = 6n - 2 Rearrange the left side of the equation.

6n - 2 = 6n - 2 Add 2n + 4n.

-6n        -6n Subtract 6n from both sides.

-2 = -2

the answer is infinitely many solutions, meaning that n can be any real number.

You might be interested in
Can someone help me please?
Fynjy0 [20]

Answer:

3 mi because aa^{2}+b^{2}=c^{2}

which a= 5 mi and c= 8 mi so b is 8-5 which is 3, hope this helps :)

6 0
2 years ago
Read 2 more answers
Help please due in. 20 minutes
34kurt

Answer:

B is a solution, A and C are not

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Graph the system of inequalities. Then use your graph to identify the point that represents a solution to the system.
FrozenT [24]

Given:

The system of inequalities:

x>3

y

To find:

The point that represents a solution to the system by using the graph.

Solution:

We have,

x>3

y

The related equations of these inequalities are:

x=3

y=2x-5

The line x=3 is a vertical line that intersect the x-axis at 3.

The table of values for y=2x-5 is:

x         y

0       -5

1        -3

Plot (0,-5) and (1,-3) on a coordinate plan and connect them by a straight line.

The boundary lines are dotted lines because the points on the lines are not included in the solution set.

Check the inequalities for (0,0).

First inequality: 0>3           ( False)

Second inequality: 0

                               0     (False)

Both inequalities are false for (0,0). It means the shaded region of the lines is in the opposite direction of (0,0).

Plot the shaded region and the points (-3, -1), (1, 11), (4, -1), (5, 6) as shown in the below graph.

From the below graph, it is clear that the point (4,-1) is the only point lies in the common shaded region. So, (4,-1) represents a solution to the system.

Therefore, the correct option is C.

5 0
2 years ago
The standard divination of a set of data is 9.5 the mean is 205 what is the margin of error
skelet666 [1.2K]

Step-by-step explanation:

Margin of error = critical value × standard deviation

We aren't given the critical value or any information to calculate it, so we need to make some assumptions.  Assuming the data set is large enough to be approximated as normal, and that the confidence level is 95%, then the critical value is 1.96.

ME = 1.96 × 9.5

ME = 18.62

You may choose to round 1.96 to 2, in which case the margin of error is:

ME = 2 × 9.5

ME = 19

8 0
3 years ago
Write each fraction number as a decimal 33/40
Gnom [1K]

Answer:

0.825

Step-by-step explanation:

In order to make the denominator 100, we must multiply both the numerator and denominator by 2.5

33*2.5 = 66 + 16.5 = 82.5

33/40 = 82.5/100

Now we solve, 82.5/100 = 0.825

3 0
3 years ago
Other questions:
  • Can someone complete the square??
    14·1 answer
  • Help me please ! This is hard
    14·1 answer
  • Please help I am not understanding this question
    15·2 answers
  • Makayla is teaching Rodney how to construct a square inscribed in a circle. Makayla says Rodney should draw diameter AB, and the
    11·1 answer
  • a.A seven-year medical research study reported that woman whose mothers took the drug DES during pregnancy were twice as likely
    7·1 answer
  • Find the slope (m) of the line passing through the given points (-2, -1) and (-4, 7)
    12·1 answer
  • I don't understand!!
    7·1 answer
  • The fires in yellowstone national park in 1988 burned 739,000 acres. the park has 2.2 million acres total. what percentage of th
    6·1 answer
  • What is the gradient of the graph shown?<br> Give your answer in its simplest form.
    10·1 answer
  • What is the area of a rectangle with a length of 7 feet and a width of 3 ¾ feet?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!