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
Leona [35]
3 years ago
11

To solve 5/7 - 2/n = 1/21

Mathematics
1 answer:
Usimov [2.4K]3 years ago
3 0

Answer:

the answer is n=3

Step-by-step explanation:

You might be interested in
Assume that the total revenue received from the sale of x items is given​ by, ​R(x)equals34 ln (4 x plus 5 )​, while the total c
katen-ka-za [31]

Answer:

63 units

Step-by-step explanation:

The profit function P(x) is given by the revenue function minus the cost function:

P(x) = R(x) - C(x)\\P(x) = 34ln(x+5)-\frac{x}{2}

The number of units sold 'x' for which the derivate of the profit function is zero, is the number of units that maximizes profit:

P(x) = 34ln(x+5)-\frac{x}{2}\\P'(x) =0= \frac{34}{x+5}-\frac{1}{2}\\x+5=68\\x=63\ units

The number of units that should be manufactured so that​ profit is maximum is 63 units.

5 0
3 years ago
Sara hiked down a mountain for 4 hours. Each hour her elevation decreased by 8 meters. Compute her change in elevation to her st
Fittoniya [83]
In order for me to figure out the answer I need the "starting point" all I get from this is how much she decreased in total, which is 32.
5 0
3 years ago
How many nickles does it take to make $50?
Rama09 [41]
There are 20 nickles in one dollar, so 20(nickles in a dollar) x 50(dollars) = 1,000
Hope this helps! 
5 0
3 years ago
Read 2 more answers
HURRY!!!:) Find the sum of (7x+4) and the opposite of 7x.
jeka57 [31]

Answer:

  • 4

Step-by-step explanation:

<u>Sum of (7x+4) and the opposite of 7x:</u>

  • 7x + 4 + (-7x) =
  • 7x + 4 - 7x =
  • 4
7 0
2 years ago
Need help with math quarterly please
lesya [120]
Put a more clearer picture can’t see men
4 0
3 years ago
Read 2 more answers
Other questions:
  • For any circle, is exactly equal to: 3.14
    10·1 answer
  • Ali purchased a container of mandarin
    5·1 answer
  • Calculate 6231+2787 by rounding each number to the nearest:
    12·1 answer
  • What is the value of x? (The figure may not be drawn to scale.​
    5·1 answer
  • 2 different pairs of decimals whose sum are 8.69 one pair should involve regrouping
    11·1 answer
  • Solve x2 - 4x = 12 by completing the square, show work please!!
    9·1 answer
  • How to fill in the prime factor tree?????? Answer???
    11·1 answer
  • Simplify.<br> 2 x (3-1) + 3<br> 07<br> 8<br> O 10<br> O 11
    8·1 answer
  • Solve n=m+9 for m<br><br> what does m equal
    9·1 answer
  • The midpoint of JK¯¯¯¯¯¯¯¯is M(6, 3). One endpoint is J(14, 9). Find the coordinates of endpoint K.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!