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
Svetlanka [38]
3 years ago
9

Please solve and explain how. Photo attached

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0

Answer:

n = -11

Step-by-step explanation:

Two fractions here have the same denominator, n - 6, but the third term (3) does not.  Finding and working with the LCD makes this problem solving much easier.  Multiply that 3 by (n - 6) and then divide it by (n - 6).  Then all three terms have the same denominator, and so we can cross out the denominator (n - 6):

n^2 + 6n + 5 - n^2 - 7  - 12 = 3n - 28

Combining like terms, we get:

3n - 2 = -35, or 3n = -33.  Thus, n = -33/3, or n = -11

You might be interested in
Honesty has lunch at Olive Garden if her bill was $14.50 and she wants to leave a 20% tip,what is the amount she would leave for
Goryan [66]

Answer:

$2.90

Step-by-step explanation:

Just take 20 percent of 14.50

4 0
3 years ago
If 2.5kg of washing powder<br> costs $4 find the cost of 1kg
Agata [3.3K]
Answer: $ 1.60

1.Set up the proportion, 2.5/4 = 1/x.
2. Cross multiply. 2.5x = 4
3. Divide both sides by 2.5. x = 1.6
8 0
4 years ago
Martha Rose decides to investigate a flag
Sergio039 [100]

Answer:

what subject is this?

Step-by-step explanation:

I cant really tell what subject this is

4 0
3 years ago
bacteria colonies can triple in size every 4 days. if you start with 40 bacteria microorganisms, how large would the colony be a
Westkost [7]

<span>Assuming the reaction is of 1st order, we can start using the formula for rate of 1st order reaction:</span>

dN / dt = k * N

Rearranging,

dN / N = k dt

Where N = amount of sample, k = rate constant, t = time

Integrating the equation from N = Ni to Nf and t = ti to tf will result in:

ln (Nf / Ni) = k (tf – ti)

Since k is constant, we can equate to situations. Situation 1 is triple in size every days, situation 2 is after 20 days.

ln (Nf / Ni) / (tf – ti) = k

ln (3Ni / Ni) / 4 = ln (Nf / 40) / 20

Calculating for Nf,

<span>Nf = 9,720 bacteria </span>

6 0
4 years ago
Read 2 more answers
Solve and explain answer : <br> 11 = 12 -q
Aleks04 [339]

Answer:

q=1

Step-by-step explanation:

So if 11=12-q it's in the simplest form possible so just simply say what number when subtracted from 12 equals 11 and the awnser is q=1

6 0
3 years ago
Read 2 more answers
Other questions:
  • Try This question and I’ll give you brainliest whoever answers it
    12·1 answer
  • What is 67912 to the nearest 10
    7·2 answers
  • Find the zeros of the following polynomial.<br> 3x3 + 9x2 - 12x
    6·2 answers
  • Solve the equation. Round to the nearest hundredth. Show work.
    7·1 answer
  • Match the new coordinates that define the figure after dilation with a center at the origin by the given scale factor.
    14·1 answer
  • Which of the following are exterior angles? Check all that apply.
    15·2 answers
  • You don't have to show work<br> 4+(2x−7)3=−5 ?
    8·2 answers
  • 9 special right triangles
    15·1 answer
  • 6. We want to build the smallest cube possible using bricks with dimensions 8 cm - 12 cm 20 cm. How many bricks do we need?​
    5·1 answer
  • Rewrite each mathematical statement using mathematical language.<br> #10
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!