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
Zanzabum
3 years ago
10

Y varies directly as x. y = –9 when x = 3 What is the equation? Find y when x = –15.

Mathematics
1 answer:
lyudmila [28]3 years ago
3 0

Answer: -3 = k


Step-by-step explanation: y/x = k is the equation.

Okay so you plug in y into that equation and x also. You should have the equation -9/3 = k. All you do is solve! You should get -3=k. I hope this helped! :D


You might be interested in
69) Half-way to the center of a planet of uniform density, your weight compared to that at the surface would be :
mel-nik [20]

Answer:

One- half

Step-by-step explanation:

Since the density is uniform  

Mass of the sphere = [(4/3) π r^3] d

where d is the uniform density.

Mass of the sphere = [(4/3) π d] r^3 = k r^3

where k = [(4/3) π d] is a constant  

Weight = mg = G m M / r^2 = G m [k r^3] /r^2 = G m k r

Using Gauss’ law for gravitation,

Half way to the center of a planet the weight is only due to the inner sphere and the outer sphere does not contribute to his weight,  

Inside his weight is mg’ = (G m k  r) /2   = mg/2  

Answer is one-half.

7 0
2 years ago
Which of the following phrases can be used to represent -11?
Reptile [31]

Answer:

eleven below zero

Step-by-step explanation:

opposite of -11 =11  so that doesn't work

positive eleven=11 so that doesn't work

eleven greater than zero=11 so that doesn't work

eleven below zer0= -11 so it works

3 0
3 years ago
Read 2 more answers
Find the zeros of x3 +2X^2-23x-60
laila [671]
Hello,

P(x)=x^3+2x²-23x-60
P(-4)=(-4)^3+2*(-4)²-23*(-4)-60=0
P(-3)=(-3)^4+2*(-3)²-23*(-3)-60=0
P(5)=5^3+2*5²-23*5-60=0
Zeros are -4,-3,5


5 0
2 years ago
-8+N=15? I can’t find the right answer
Paraphin [41]

Answer:

n = 23

Step-by-step explanation:

-8 + n = 15

-8 + n + 8 = 15 + 8

n = 23

Answer:  n = 23

7 0
3 years ago
Read 2 more answers
This is a little cunfusing lol
Luba_88 [7]

Answer: its C

Step-by-step explanation: cause i did that already

5 0
3 years ago
Read 2 more answers
Other questions:
  • Need answer ASAP <br> *MARKING BRAINLIEST
    14·1 answer
  • System of Equations: Solve for (x,y) given the system of linear equations "X 1 point
    11·1 answer
  • Can someone help plz
    13·1 answer
  • If a = b /c-b , find the value of b when a = 3 and c = 10 *
    7·1 answer
  • Is a saving a variable or fixed expense
    15·1 answer
  • I need help on 4 and 6 please help me. Don’t put a link.
    10·1 answer
  • Equation: M+6/-3=4<br> What did you do?<br> Simplify/complete sentence
    8·1 answer
  • Help me with this one as fast as u can
    14·1 answer
  • Natalia paid $38.95 for three medium-sized pizzas and a salad. if Natalia paid $11.98 for the salad, which equation can be used
    11·2 answers
  • In 1519 Ferdinand Magellan set sail with 5 ships on the first voyage around the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!