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
Ber [7]
3 years ago
14

Y is directly related to X, and Y is 81 when X is 27. The constant of variation is ____

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

Answer:x=3/9

Step-by-step explanation:

X directly proportional to Y

X=ky

Make k the subject of formula

k=x/y

K=27/81

Divided by 9

K=3/9

You might be interested in
Urgent!! Math help!!!
andriy [413]

Answer:

17

Step-by-step explanation:

15*15+8*8=289

\sqrt{289}= 17

6 0
3 years ago
Read 2 more answers
(m+2)(m+3)=(m+2)(m-2)
Anastaziya [24]
(m+2)(m+3)= (m+2)(m-2)
⇒ m^2+ 3m+ 2m+ 6= m^2 -4
⇒ 5m+ 6= -4 (m^2 on both sides cancels out)
⇒ 5m= -4-6
⇒ 5m= -10
⇒ m= -10/5
⇒ m= -2

The final answer is m=-2~
6 0
3 years ago
If a firm produces nothing which of the following costs will be zero?
matrenka [14]
In general when a firm produces nothing it still has to pay for the fixed costs while the variable costs are zero
3 0
3 years ago
Evaluate the variable expression when a = 5, b = 5, and c = -4.<br> Bc divided by (2a)
zlopas [31]

Answer:

-2

Step-by-step explanation:

Bc÷2a

5×-4÷2×5

-20÷10

-2

6 0
3 years ago
Read 2 more answers
Evaluate the expression when x = 8 and y = 1.
Rzqust [24]
The answer should be 4.

First, simplify \frac{8}{2} to 4. Your problem should look like: 4 x 1. 
Second, multiply. 4 x 1 = 4 so that is your answer.

Also, 
to start the equation up, make sure to add in the numbers in replace for the letters. Your problem to start with should look like: \frac{8}{2(1)}.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The universal set is U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. If A = {2, 3, 4, 5, 6} and B = {5, 6, 7, 8, 9}, find the following.
    13·1 answer
  • The volume of a sphere is 11, 488 cubic centimeters. What is the diameter of this sphere, to the nearest centimeter? (Volume of
    10·1 answer
  • SOMEONE PLEASE HELP!!! [ 20 POINTS] SERIOUS ANSWERS ONLY!!!!
    5·2 answers
  • SV is an angle bisector of ∠RST. If m∠RSV = (2x + 8)° and m∠RST = (6x − 26)°, find x.
    7·1 answer
  • ABCD is a parallelogram.<br><br> If AB =4.7 cm and BD =10.6cm, what is CD?
    10·1 answer
  • NEED ANSWERS FAST!!!! If there are 100 students in a room and 40 of them are boys, how many are girls?
    11·2 answers
  • 8^6 * 8^4 Rewrite the expression in the form 8^n
    5·1 answer
  • P(E) = 1/4 so P(E’) = ___
    7·1 answer
  • Plsss help me
    14·1 answer
  • HELP ASP! PLEASE!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!