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
BartSMP [9]
3 years ago
8

If a varies inversely with b, and a=20 when b=14, find the equation that relates a and b.

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
4 0

Answer:

ab = 280

or

a = 280/b

Step-by-step explanation:

Inverse variation is of the form

xy = k

Since we have a and b as our variables

ab = k

20 *14 = k

280 = k

ab = 280

Sometimes they write it as

a = 280/b

You might be interested in
What is the distance between (-5,8) and (-5.-8)
lisabon 2012 [21]

Answer: Use the formula y = mx + b in order to solve for b. Then, plug in known vaules.

y= -13x -57

Step-by-step explanation:

7 0
2 years ago
Monica spent 3/4 hours listening to tapes of Beethoven and Brahms. She spent 1/5 hours listening to Beethoven . How many hours w
ELEN [110]

Answer:

Monica spent 0.55 hours listening to Brahms.

Step-by-step explanation:

We are given the following in the question:

Amount of time spent  listening to tapes of Beethoven and Brahms =

=\dfrac{3}{4}

Amount of time spent  listening to Beethoven =

=\dfrac{1}{5}

Total time spent listening to Brahms =

Amount of time spent  listening to tapes of Beethoven and Brahms - Amount of time spent  listening to Beethoven

=\dfrac{3}{4}-\dfrac{1}{5}\\\\=\dfrac{15-4}{20}\\\\=\dfrac{11}{20}\text{ Hours}\\\\=0.55\text{ Hours}

Thus, Monica spent  \frac{11}{20}\text{ hours} listening to Brahms.

7 0
3 years ago
Read 2 more answers
There are 32 times students can work in the computer lab during one week. If 24 students can work in the computer lab at one tim
uysha [10]
600 students can work in the lab

4 0
3 years ago
Read 2 more answers
Ebert used to make $22 an hour, but got a 10% raise.How much more will he make in a 40 hour work week with the raise?
Scilla [17]
The answer is 968 if because of add
6 0
3 years ago
Sarah needs to complete 10,008 hours of guitar practice. How many hours of practice a day should she do to reach her goal in 3 y
avanturin [10]
10008 hours per 3 years is average of 3336 hours per year, or about 9.1 per day.
4 0
3 years ago
Other questions:
  • Which best describes the function on the graph?
    13·1 answer
  • You earn $10.00 per hour babysitting. Your total earnings depend on the number of hours you spend babysitting.
    10·1 answer
  • The box is 2.1 feet long,2.7 feet wide and 3.2 feet high. What is closest to the total surface area of the box?
    7·2 answers
  • Use the diagram to find the measure of angle 1 and measure of angle 2
    14·1 answer
  • NEED HELP TAKING A QUIZ HAVE NO IDEA WILL MAKE YOU BRAINLEST
    5·2 answers
  • The diameter of the moon is 2,160 miles. A model has a scale of 1 in : 150 mi. What is the diameter of the model?
    8·1 answer
  • Does anyone know how to do this? I’m lost
    11·1 answer
  • I dont know what to do here​
    5·1 answer
  • PLEASE HELP !! ILL GIVE BRAINLIEST !!
    11·1 answer
  • Find the slope of every line that is parallel to line on the graph (0,-3) (5,-4)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!