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
evablogger [386]
3 years ago
7

If x varies inversely as y and x=16 when y=5, find x when y=20.

Mathematics
1 answer:
Elanso [62]3 years ago
4 0

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The inverse variation means that when y goes up by a factor of 20/5 = 4, the value of x goes down by the same factor.

  x = 16/4

  x = 4

You might be interested in
The length of a rectangle is 5 centimeters less than twice it’s width. The perimeter of the rectangle is 80 cm. What are the dim
algol [13]
<h3><u>The length is equal to 25.</u></h3><h3><u>The width is equal to 15.</u></h3>

l = 2w - 5

2l + 2w = 80

We have a value for l, so we can plug it into the second equation to solve for w.

2(2w - 5) + 2w = 80

Distributive property.

4w - 10 + 2w = 80

Combine like terms.

6w - 10 = 80

Add 10 to both sides.

6w = 90

Divide both sides by 6.

w = 15

Now that we have a value for w, we can plug it into the original equation to solve for l.

l = 2(15) - 5

l = 30 - 5

l = 25


3 0
3 years ago
True of false? the slope of thia equation is zero <br>y=x+5<br>​
Ugo [173]

Answer:

false

Step-by-step explanation:

no solution

5 0
3 years ago
Read 2 more answers
5k-2(3k + 4) = 5x + 4<br> help?
vazorg [7]
Use distributive property
5k - 6k -8 = 5x + 4
Combine like terms
-k - 8 = 5x + 4
add 8 to both sides
-k = 5x + 12
k = -5x- 12
4 0
3 years ago
Read 2 more answers
In disgustAng math :D
zalisa [80]

Answer:

C

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The product of a non-zero rational number and an irrational number can always be written as A.a fraction. B.a terminating decima
a_sh-v [17]
The product of a non-zero rational number and an irrational number is irrational.
Therefore C is the answer.
A, B, and D are all properties of rational numbers. Irrational numbers are ones that can not be written as a ratio, or fraction, using whole numbers. They are non-repeating, non-terminating numbers. Example would be pi.
6 0
3 years ago
Read 2 more answers
Other questions:
  • You worked from 2:30pm - 8:45pm with a 1/2 hour lunch break your hourly wage is $7.50/hour how much did you earn
    9·2 answers
  • a balloon is inflated such as its radius is 7.00 cm. What is the volume of air inside the balloon in mL
    12·1 answer
  • Usan has a collection of 105 nickels and dimes. If the number of nickels is six times the number of​ dimes, how many nickels and
    11·1 answer
  • Please help with this equation problem. Find y and show your work- will give brainliest
    6·1 answer
  • Can you help me on a math problem?
    9·1 answer
  • Why did Christianity spread after Constantinople became the capital?
    9·1 answer
  • How high is the hand of the superhero balloon above the ground?
    8·1 answer
  • I need help and plz show your work to.
    8·2 answers
  • The area of a circle, in terms of
    14·1 answer
  • What is this symbol??​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!