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
ki77a [65]
3 years ago
6

If f(x) varies directly with x and f(x) = 72 when x = 6, find the value of f(x) when x = 3.

Mathematics
2 answers:
mestny [16]3 years ago
7 0

Answer:

The value of f(x)  at x = 6 is 36

Step-by-step explanation:

Given as :

f(x) varies directly with x

f(x) = 72  ,  for x = 6

So, The function f(x) must be 12 x

i.e f(x) = 12 x

A this function satisfy for x = 6

Now, The function is f(x) = 12 x

So, for x = 3

The function f(x) = 12 × 3

I.e  f(x) = 36

Hence The value of f(x)  at x = 6 is 36  Answer

yaroslaw [1]3 years ago
6 0

Answer:

36

Step-by-step explanation:

Since f(x) varies directly with x, f(x) can be expressed alternatively as \[f(x) = k * x\] where k is a constant value.

Given that f(x) is 72 when the value of x is 6.

This implies, \[72 = k * 6\]

Simplifying and rearranging the equation to find the value of k:

k = \frac{72}{6}

Hence k = 12

Or, \[f(x) = 12 * x\]

When x = 3, \[f(x) = 12 *3 \]

Or in other words, the value of f(x) when x=3 is 36

You might be interested in
I WILL GIVE A LOT OF POINTS AND BRAINLIEST
nasty-shy [4]

Hello there!

First of all, I like your profile picture!

1) There's a lot of different methods for solving a system of equation. But here are my three favorite.

  • Graphing
  • Substitution (Which I preferred to use and I think it is easier).
  • Elimination

2) When solving a system of equations, you can get;

  • One solution
  • No solution
  • Infinite number of solution

3) The graphing method help solving a system of equation by knowing that the solution to a system of equations is the point of intersection of the two lines.

I hope this answer helps. As always, it is my pleasure helping student like you!

4 0
3 years ago
What is 62 divided by 0.25
Semenov [28]
62 divided by 0.25 is 248
3 0
3 years ago
What is the tangent ratio of angle xº?
katovenus [111]

Answer:

option number 2

gfud lzygochcivobisufiblvi

5 0
3 years ago
Read 2 more answers
PLEASE HELP! 20 POINTS!!
Ann [662]

Answer:

15

Step-by-step explanation:

In this problem we need to use the numbers given. So in the problem it states that k = 20 and v = 10. We can replace the letters in the equation for the numbers that it equals so the equation can make sense so 25 - 20 + 10 because k is 20 and v is 10 I simply just replaced the letters with the numbers given in the problem. Then we can just subtract 25 - 20 which is 5 and add 10 which leaves you at a final answer of 15. Hope this helped!

3 0
3 years ago
50 points!!! please hurry
Margarita [4]

Answer:

It comes down to what the equals sign means. It means,  that the two things mentioned on either side of the equation are the same thing. If you do something to the left side, you have presumably changed it.

Step-by-step explanation:

Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the triangle if c = 10 and A = 50 degrees
    15·1 answer
  • Please draw for me when you answer the question above.
    10·1 answer
  • PLEASE HELP WITH THESE QUESTIONS I WILL MARK YOU BRAINLIEST!!! HELP I HAVE 5 MINSSSSS
    10·1 answer
  • Please help me figure this out! Thank you so much :( i really need it! ❤️
    14·1 answer
  • Please help!!! MAX POINTS I CAN DO i put it in math because i trust the math people more
    9·2 answers
  • A movie theater has a seating capacity of 187. The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults.
    14·1 answer
  • Determine which pair of points has a negative slope.
    5·2 answers
  • Please help me on a test 2 3/4 + 5 1/2
    5·1 answer
  • What is 34% out of 35????
    13·2 answers
  • Ava bought a new computer and is now
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!