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
Simora [160]
3 years ago
15

If y varies as x, and y is 20 when x is 4, what is the constant of variation for the relation?

Mathematics
2 answers:
rusak2 [61]3 years ago
6 0
Y = kx
so
k = y/x

<span>y is 20 when x is 4
k = 20/4 = 5

Answer
The </span><span>constant of variation for the relation = 5</span>
Alinara [238K]3 years ago
5 0
Hi there!

y ∝ x

∴ y = kx ---(i)
Where " k " is the constant of variation & k ≠ 0

Now to determine " k ".
Use the given condition that when :

• x = 4
• y = 20

Substitute th' respective values in Eqn. (i) :-

y = kx

⇒ 20 = k(4)

⇒ 4k = 20

⇒ k = \dfrac {20}{4} = 5

Hence,
The constant of variation for the relation is 5

~ Hope it helps!
You might be interested in
Can someone help me with 11 A and B?
Elan Coil [88]
For 11a its 2:10 because how you would come up with it is by placing pablos free minutes first and then putting pablos paid minutes and 11b is8:25 because once again you would place sams free minutes first and then his paid minutes
6 0
3 years ago
16x - 3 = 12x + 13<br> Kkjjkkkkjhjhn
Leokris [45]

Answer:

X = 4

Step-by-step explanation:

16x -3 = 12x+13

16x-12x=13+3

4x= 16

x = 16/4

x=4

3 0
3 years ago
Help please ............ solve<br><br>Solve<br><br> <br><br>X-3y=z<br>-x+2y=-3
Alenkasestr [34]
You don't need 3 equations to get a general solution.  To do this use the equations x-3y-z=0 and -x+2y+0z= -3.  Start out by letting z = t.  Then solving those 2 equations simultaneously, your x's cancel out leaving you with -y-z=-3.  But since z=t, then -y=-3+t or y=3-t.  Now sub that in for y in the first equation, along with the fact that z=t to get x-3(3-t)-t = 0 and solve for x. x=9-2t.  So a general solution for this would be (9-2t, 3-t, t)
8 0
3 years ago
How do I solve for the area of a semi oval with measurements of 2cm on the bottom and 5cm on the side
Setler [38]

Answer:

yan po ang sagot ko(◍•ᴗ•◍)❤

Step-by-step explanation:

sana maka tulong ako

goodluck ❤️

3 0
3 years ago
What is the exact volume of a cylinder with a height of 8in and a diameter of 6 in
Andru [333]
<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ You would use the formula:

volume = \pi r^2*h

Substitute in the values:

(note: the radius is half the diameter)

volume = \pi (3)^2*8

Solve:

Volume = 226.1946711

I'm not sure how far you require it rounded, or if you want the whole value so I will just leave the entire value. If you need assistance with rounding it to specific figures, just comment down below and I'll help.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

3 0
2 years ago
Read 2 more answers
Other questions:
  • Using benchmarks to measure length of a car customary unit
    10·1 answer
  • Please help me, will reward Brainliest!!!
    11·1 answer
  • Convert 2032four to base 10
    6·1 answer
  • How high up a vertical wall will a 26-foot-long extension ladder reach if its base is placed 10 feet away from the wall?
    13·1 answer
  • Help. Find the value of x to the nearest tenth
    8·1 answer
  • What is the surface area of this rectangular prism?
    9·2 answers
  • The figure below shows a shaded region and a nonshaded region. Angles in the figure that appear to be right angles are right ang
    13·2 answers
  • A landscaper waters a lawn during the summer.
    8·1 answer
  • Students are measuring the mass of an object in Science class. The mass is 38 grams. Danielle measured the mass at 40 grams. Wha
    15·1 answer
  • For which sample size (n) and sample proportion (p) can a normal curve be
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!