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
arsen [322]
3 years ago
10

Assume that y varies directly with x. If y = -5 when

Mathematics
1 answer:
steposvetlana [31]3 years ago
8 0

Answer:

Thus, the value of x = -36 when y = 15

Step-by-step explanation:

We know that if y varies directly with x, we can express the relationship such as

y ∝ x

y = kx

k = y/x

where 'k' is called constant of variation.

Given

y = -5

x = 12

Using the equation

k = y/x = -5/12

Thus, the value of k = -5/12

Finding x when y = 15

y = 15

k = -5/12

substituting y = 15 and k = -5/12 in the equation

y = kx

15 = -5/12 (x)

15×12 = -5x

180 = -5x

divding both sides by -5

-5x/-5 = 180/-5

x = -36

Thus, the value of x = -36 when y = 15

You might be interested in
22-3(4)<br> How do I answer this question?
Ulleksa [173]

Answer:

76

Step-by-step explanation:

22-3=19

19x4=76

5 0
2 years ago
Read 2 more answers
Mrs. Alvarez has a piece of ribbon that is 2.65 feet long. She cuts the ribbon into 5 equal parts. Which is the best estimate of
yulyashka [42]

Answer:

.53

Step-by-step explanation:

Well all you gotta do is basically just divide so it will be 2.65 divide by 5 which would equal the answer which is .53 for all sides

5 0
2 years ago
A wire stretches from the top of a pole 8m high to a stake in the ground which is 6m from the foot of the pole. Find the length
kap26 [50]
It is 48 m high. I got no help (by the way)
4 0
3 years ago
Which ordered pair is a solution of the equations y=-5/4x-2
sashaice [31]
The answer is C. That would be ur answer
5 0
2 years ago
What symbol makes the statement true? <br>4/6 3/8​
Anastasy [175]
4/6 is 0.666666666666667
3/8 is 0.375
So 4/6>3/8
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the equation of a line that passes through the point (8, 1) and is perpendicular to the line whose equation is y=−23x+5y
    12·2 answers
  • Triangle ABC has vertices at A(-4, -2), B(1, 7) and C(8, -2)
    11·1 answer
  • Point B ∈ AC . Points K, M, N, and P are the midpoints of AB , AC , MC , and NC , respectively. Write a congruency statement for
    13·1 answer
  • Please help me on my math
    11·2 answers
  • Write each equation in standard form:<br> a<br> 6y=–3x–9
    10·2 answers
  • Distance Between Two Ships Two ships leave the same port at noon. Ship A sails north at 14 mph, and ship B sails east at 18 mph.
    12·1 answer
  • Help!!!!!!!<br> I will make you brainliest
    6·1 answer
  • Can anyone help me with this:<br> 4a+23-22=32<br> Find the value of aa'
    15·2 answers
  • a box contains 2 red pens 4 yellow pens and 6 blue pens. what is the probability of selecting a yellow pen then without replacin
    12·1 answer
  • In order to prove the triangles congruent by ASA, which statement needs to be given?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!