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
Aleks [24]
3 years ago
12

What is the answer to 3n-5=7n+11

Mathematics
2 answers:
Pavel [41]3 years ago
5 0
3n - 5 = 7n + 11

3n = 7n + 16

-4n = 16

n = -4
MaRussiya [10]3 years ago
4 0
3n-7n=5+11,,-4n=16,,n=-4 .......
You might be interested in
Nola was selling tickets at the high school dance. At the end of the evening she picked up the cash box and noticed a dollar lyi
Blizzard [7]

Answer:

The $1 belongs to the cash box

Step-by-step explanation:

Given

See attachment for complete question

Required

Determine if the $1 belongs to the cash box or not

Represent singles with s and couples with c.

From the attachment, we have:

s + c = 47 --- total attendance

5s + 4c =200 --- ticket sold

Solve for s and c.

Make s the subject in (1)

s = 47-c

Substitute 47 - c for s in (2)

5(47 - c) + 4c = 200

Open bracket

235 - 5c + 4c = 200

235 - c = 200

c = 235 - 200

c = 35

This means that the total individual which makes up the couples are 35. This is not possible because couples are in 2's and the total should be an even number.

<em>So, we can conclude that the $1 belongs to the cash box</em>

4 0
3 years ago
Reduce 18/45 to the simplest form.
horrorfan [7]
The simplest form of 18/45 is 2/5
4 0
3 years ago
Read 2 more answers
I need help on this problem please ?
MrRa [10]
The answer to this answer is B
7 0
3 years ago
Read 2 more answers
Find an explicit rule for the nth term of the sequence. 7, -7, 7, -7, ...
skelet666 [1.2K]
Try a_n=7(-1)^{n+1}, where n\ge1.
6 0
4 years ago
Give the slope of a line parallel to the given.
melisa1 [442]

Answer:

1/2

Step-by-step explanation:

2x - 4y = 12

-4y = -2x + 12

-4y/-4 = -2x/-4 + 12/-4

y = 1/2x - 3

6 0
3 years ago
Other questions:
  • What is the comm9n denominator of 2/3 &amp; 3/4
    15·2 answers
  • Select from the drop-down menus to correctly complete the sentence. The probability of a compound event is a number between 1.__
    7·2 answers
  • Can you guys help me in number 3 please
    12·1 answer
  • 1+1=? giving free points​
    6·2 answers
  • Write the claim mathematically and identify Upper H 0 and Upper H Subscript a. ​(b) Find the critical​ value(s) and identify the
    14·1 answer
  • Look at the graph shown below the blue line represents an _______ of the graph
    11·1 answer
  • Which equation best matches the graph shown below ?
    10·1 answer
  • Identify the percent of change as an increase or decrease. 10 feet to 8 feet point
    8·1 answer
  • A student made a list of questions to gather data about a local movie theater. She will ask a sample of her classmates to answer
    13·1 answer
  • For each equation choose a value for x and then solve
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!