NvidiaIntely
NvidiaIntely NvidiaIntely
  • 02-07-2019
  • Mathematics
contestada

If y varies inversely as x, and y = 4 as x = 8, find y for the x-value of 2.
16 10 8 14

Respuesta :

harpazo
harpazo harpazo
  • 02-07-2019

y = k/x

We want to find k first.

4 = k/8

4(8) = (k/8)(8)

32 = k

We now need to find y knowing that k = 32 and x = 2.

y = k/x

y = 32/2

y = 16

Did you follow?

Answer Link
mathstudent55
mathstudent55 mathstudent55
  • 02-07-2019

Answer:

16

Step-by-step explanation:

Inverse variation follows this equation:

y = k/x

We know one point, so we input x and y, and solve for k.

4 = k/8

k = 32

The inverse variation equation is

y = 32/x

Now we let x = 2, and use our equation to find y.

y = 32/2

y = 16

Answer Link

Otras preguntas

Two diverging light rays, originating from the same point, have an angle of 5° between them. After the rays reflect from a plane mirror, what is the angle betwe
which type of gas is filled in lays pack and why?
2-3 facts about Warsaw Pact
An ice cube is dropped into boiling water. How will heat flow between the water and the ice cube?
Hey, need some help reverent A. respectful B. respect C. reply D. to spoil
which foods earthworms can digest?
The Commissariat established by Frederick William in Prussia became A. the overseer of the army. B. an agency of civil government. C. both a military and civil
wats the 60% off a prize that is $20.00
What is the probability of someone correctly guessing your Social Security number? (Assume all digits 0-9 are available for use)a
2-3 facts about Warsaw Pact