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
tiny-mole [99]
3 years ago
9

If y varies inversely as X and Y equals 5 when x equals 3 find X when Y is 15​

Mathematics
1 answer:
omeli [17]3 years ago
5 0

Answer:

x = 1

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = \frac{k}{x} ← k is the constant of variation

To find k use the condition y = 5 when x = 3

k = yx = 5 × 3 = 15, thus

y = \frac{15}{x} ← equation of variation

When y = 15 then

15 = \frac{15}{x} ( multiply both sides by x )

15x = 15 ( divide both sides by 15 )

x = 1

You might be interested in
Simplify the following equation -3(2x - 4) A. -6x - 4 B. -5x-7 C. -6x + 12 D. -6x + 12
azamat
-3(2x - 4) \\ \\ -6x + 12 \\ \\

The final result is: -6x + 12.
5 0
3 years ago
Read 2 more answers
7.1 is 10 times smaller than
Aleks [24]
7.1 is ten times smaller than 71
8 0
3 years ago
Read 2 more answers
Mustafa contributes 11% of his $67,200 annual salary to his 401(k) plan. What is his pretax income?
Juli2301 [7.4K]
11% of $67,200.
We need to keep in mind that some words and numbers here aren't important, like 401(k) plan. 
So what is 11% of $67,200?

\frac{11}{100}  * $67,200


11*$672

$7392

Hope this helps!
5 0
3 years ago
Read 2 more answers
There are 6 gallons in a tank that is 20% full. How many gallons are in a full tank? Use a double number line to show your work.
Alex17521 [72]

Answer: 30 gallons

Step-by-step explanation:

Let the number of gallons that are in a full tank be represented by x.

Since there are 6 gallons in a tank that is 20% full, this will be set up in an equation as:

20% × x = 6

20/100 × x = 6

0.2 × x = 6

0.2x = 6

x = 6/0.2

x = 30

There are 30 gallons in a full tank

3 0
3 years ago
Square root of 164,025
Darina [25.2K]

Answer:

405

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • the length of a rectangle is 7 cm less than its width what are the possible dimensions of the rectangle if its area is 120 squar
    15·1 answer
  • Help help help! I need theses answers QUICK
    15·1 answer
  • 1. A recipe calls for cups of flour, cup of white sugar, and cup of brown sugar. The recipe makes 6 servings.
    10·2 answers
  • Four is no less than the quotient of a number x and 2.1
    8·1 answer
  • Sales of a popular movie increased by 129% from the first week to the second week. If 2,456 movies were sold the first week, how
    7·1 answer
  • What is the value of x in the equation x – y = 30, when y = 15?
    9·2 answers
  • If using the method of completing the square to solve the quadratic equation
    6·1 answer
  • Help I need the answers in 20 minutes
    15·2 answers
  • Please help with this/
    10·1 answer
  • 7. There are forty-two days left in the school year.<br> How many full weeks of school are left?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!