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
valina [46]
3 years ago
14

2n-5(n+5)=8n+3(1-5n) what does n equal to

Mathematics
2 answers:
Alenkinab [10]3 years ago
7 0
Reorder the terms: 2n + -5(5 + n) = 8n + 3(1 + -5n) 2n + (5 * -5 + n * -5) = 8n + 3(1 + -5n) 2n + (-25 + -5n) = 8n + 3(1 + -5n) Reorder the terms: -25 + 2n + -5n = 8n + 3(1 + -5n) Combine like terms: 2n + -5n = -3n -25 + -3n = 8n + 3(1 + -5n) -25 + -3n = 8n + (1 * 3 + -5n * 3) -25 + -3n = 8n + (3 + -15n) Reorder the terms: -25 + -3n = 3 + 8n + -15n Combine like terms: 8n + -15n = -7n -25 + -3n = 3 + -7n Solving -25 + -3n = 3 + -7n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '7n' to each side of the equation. -25 + -3n + 7n = 3 + -7n + 7n Combine like terms: -3n + 7n = 4n -25 + 4n = 3 + -7n + 7n Combine like terms: -7n + 7n = 0 -25 + 4n = 3 + 0 -25 + 4n = 3 Add '25' to each side of the equation. -25 + 25 + 4n = 3 + 25 Combine like terms: -25 + 25 = 0 0 + 4n = 3 + 25 4n = 3 + 25 Combine like terms: 3 + 25 = 28 4n = 28 Divide each side by '4'. n = 7 Simplifying n = 7
Charra [1.4K]3 years ago
6 0
2n -5n -25 = 8n +3-15n

-3n -25 = -7n + 3

Plus 3 from both sides

-25 = -4n + 3

Subtract 3 from both sides

-28 = -4n

N= 7

Hope this help!
You might be interested in
total of $ 33 comma 000 is to be​ invested, some in bonds and some in certificates of deposit​ (CDs). If the amount invested in
leva [86]

Answer: $17,000 invested in bonds and $13,000 in certificate of deposit

Step-by-step explanation: let x = amount invested in bonds

y = amount invested in certificate of deposits.

According to the question, amount invested in bonds is $4000 more than the amount invested in certificate of deposits.

x = y + $4000 — (1)

Also from the question, the total money for investment is $30,000

x + y = $30,000 — (2)

By substituting eqn (1) into eqn (2), we have

y + 4000 + y = 30, 000

2y + 4000 = 30,000

2y = 30,000 - 4000

2y = 26,000

y = $ 13,000

But x + y = 30,000 where y = 13,000

x + 13, 000 = 30,000

x = 30,000 - 13,000

x = $17,000

Hence $17, 000 is invested in Bonds and $13, 000 in certificate of deposit

7 0
3 years ago
Read 2 more answers
Find the midpoint of the segment with the endpoints: (-7, -13) and (-11, -5)
vichka [17]

Answer:

<u>(-9, -9)</u>

Step-by-step explanation:

Midpoint Formula :-

(x, y) = (x₁ + x₂ / 2, y₁ + y₂ / 2)

= (-7 + -11 / 2, -13 + -5 / 2)

=<u> (-9, -9)</u>

6 0
3 years ago
If pq=7 and qr=28 then what is pr
polet [3.4K]
If pq=7 and qr=28 then,
p=7/q and r=28/q

pr=7/q×28/q
pr=196/q^2

Hope it helps you
8 0
3 years ago
Read 2 more answers
Mr. Jones took a survey of college students and found that 60 out of 65 students are liberal arts majors. If a college has 8,943
hammer [34]

Answer:

We can expect 8255 numbers of students are liberal arts majors.

Step-by-step explanation:

Given:

Total Number of students in the college = 8943

Now According to Mr. Jones Survey;

60 out of 65 students are liberal arts majors.

We need to find the number of students who are liberal arts majors out of total number of students in college.

Solution:

First we will find the Percentage number of students who are liberal arts majors according to survey.

Percentage number of students who are liberal arts majors can be calculated by dividing 60 from 65 then multiplying by 100.

framing above quote in equation form we get;

Percentage number of students who are liberal arts majors = \frac{60}{65}\times 100 = 92.31\%

Now we will find the Total number of students who are liberal arts major.

Total number of students who are liberal arts major can be calculated by Multiplying Percentage number of students who are liberal arts majors with total number of students in the college and then dividing by 100.

framing above quote in equation form we get;

Total number of students who are liberal arts major = \frac{92.31}{100}\times 8493 \approx8255.28

Since number of students cannot be in point, so we will round the value.

Hence We can expect 8255 numbers of students are liberal arts majors.

5 0
3 years ago
Find the intersection of the three sets: A = {–4, 3, 10}, B = {3, 6, 10, 15}, C = {–4, 10, 20}. {–4, 10} {10} {–4, 3, 6, 10, 15,
Lana71 [14]

Answer:

The intersection is 10

Step-by-step explanation:

You just have to look at them and see what number is in all the sets.

6 0
3 years ago
Read 2 more answers
Other questions:
  • F(x) = 4r +3. Find f (5).<br> f(5) =
    11·1 answer
  • 6. At the end of the basketball season, the
    6·1 answer
  • Complete the two-way frequency table below, which shows the relationship between student gender and how these students travel to
    6·1 answer
  • 48kg in the ratio 1:3:2
    10·1 answer
  • Solve: 7/9=21/(ANSWER)
    11·2 answers
  • BRAINLIEST AND 50 POINTS BRAINLIEST IF CORRECT
    15·1 answer
  • Solve for x. x - 7 = 25
    14·2 answers
  • Help me plzzzz<br><br> (x+1)^2 -3(x+2)<br><br> If you could give an explanation that would be great!
    15·1 answer
  • Hurry Yes Please Help I am handing A Brainlist
    13·1 answer
  • Y=-2x+5 how do you solve?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!