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
anzhelika [568]
3 years ago
14

If K = (AB)/(A+B) , then B = ?

Mathematics
1 answer:
marysya [2.9K]3 years ago
6 0

Lets do

\\ \sf\longmapsto K=\dfrac{AB}{A+B}

\\ \sf\longmapsto \dfrac{1}{K}=\dfrac{A+B}{AB}

\\ \sf\longmapsto \dfrac{1}{K}=\dfrac{1}{A}+\dfrac{1}{B}

\\ \sf\longmapsto \dfrac{1}{B}=\dfrac{1}{K}-\dfrac{1}{A}

\\ \sf\longmapsto \dfrac{1}{B}=\dfrac{K-A}{AK}

\\ \sf\longmapsto B=\dfrac{AK}{K-A}

You might be interested in
(02.01 LC)
horsena [70]

Answer:

B. Number the students on the school roster. Use a table of random numbers to choose 160  students from this roster for the survey.

Step-by-step explanation:

4 0
4 years ago
Joelle has $15.75. She spent $6.38 at the store.
Alborosie
X + 6.38 = 15.75<span> would be the answer 
      x=9.37
for the first option, you are not adding 15.75 and x together. 
for the second option, it is correct, because in the problem, it is giving the operation, 15.75-6.38=x. when you turn it do inverse operation, you get </span><span>x + 6.38 = 15.75. 
for the third option, it doesn't make sense and it's not doing what the problem is asking for.
for the fourth option, you are not multiplying. you are subtracting </span>15.75 by<span> 6.38 to get x.</span>
4 0
4 years ago
Read 2 more answers
Last summer, Brianna planted 2 plants
Volgvan

Answer: how many square feet are there? multiple each square foot by 2

Step-by-step explanation:

4 0
3 years ago
Pleaseeeeeeee help me
tino4ka555 [31]

Answer:

x = 24

Step-by-step explanation:

10:8

10(3) = x(3)

x = 8

30 : 24

7 0
3 years ago
Read 2 more answers
Can u help me please :)
GuDViN [60]
She has to go down 4, back up to 0, and then up another 4, then back to 0.I<span>f positive 1 represents the first level above ground, negative numbers are a good choice to represent levels below ground. 8 flights; starting at -4 and moving to 4.</span>
7 0
3 years ago
Other questions:
  • Please help Simplify these expressions
    9·1 answer
  • Why is not reasonable to say that 4.23 is less than 4.135
    8·1 answer
  • I really don’t understand questions 3,4,6,7 could you please please help! i don’t need #5. If you can please explain your work.
    13·1 answer
  • If you toss a die (1), what is the probability of getting the number 5 NOT coming up?​
    7·2 answers
  • Solve the system of equations y=3x+2 y=x2-4x+2​
    14·1 answer
  • Find the area of the region between the curves y=12-x^2 and y=x^2-6
    10·1 answer
  • Help please<br> attachment**
    10·1 answer
  • (WILL GIVE BRAINLIST) The number of phone calls received by the complaint department of a small company over a five day period i
    10·1 answer
  • Twice one number added to another umber is 18. If the second number is equal o 12 less than 4 times the first number, find the t
    12·1 answer
  • Hm uh I dont get it help ?????..........
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!