cassietruong cassietruong
  • 01-09-2019
  • Mathematics
contestada

If y varies directly with x and y = 6 and x = -3, find y when x = 4.

Respuesta :

Auspicious
Auspicious Auspicious
  • 01-09-2019

Ask questions in the comment section if you have questions. I'm happy to help! <3

Step-by-step explanation:

What the question is telling you is that x and y and proportional, almost like a ratio.

x : y

-3 : 6

Now we have to find y when x is four.

-3 : 6

    to

4 : y

Let's create a proportional equation...

(-3 / 6) = 4 / y

- 1 / 2 = 4 / y

What can we divide by four to create -1/2?

y = -8.

Answer Link
Vividerla
Vividerla Vividerla
  • 01-09-2019

Answer:

y = -8

Step-by-step explanation:

6/-3 = -2

4 * -2 = -8

y = -8

Answer Link

Otras preguntas

As an individual ages, small sensory losses such as a decreased ability to hear nuances of emotion in speech _____. impair cognition are noticed immediate
Select the statement that best justifies the conclusion based on the given information. Definition of bisector. Definition of midpoint. If two lines inters
hey can you please help me posted picture of question
Name 4 ways the human body protects itself
What is the discriminant of the quadratic equation
Graph the parabola 3x^2+6x-24
Brand x copier has improved its copier so that it produces 10% more copies than its old model. if the old model ran 420 copies per hour, how many copies would t
Which system of inequalities is represented by the graph?
3a=a+22 help me please
A bag has 10 marbles and 4 are black. Joseph picks 2 marbles without replacing the first. What is the probability that both are black?