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

At the beginning of WWII, what action by Winston Churchill influenced Hitler’s strategy?
Solve for x and y simultaneously x-2y=3. 3x²-5xy-16y=24
Which of the following statements is true? 16 x 2/3 The product will be less than 16. The product will be greater than 16. The product will be equal to 16.
Enter the expression 2cos2(θ)−1, where θ is the lowercase Greek letter theta.
8^x = (1/2)^(x-1) Solve for x
When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion? A. -1 B. -2 C. +2 D. +1
What causes resistance in an electrical current
Choose the correct verb form to complete the sentence. Each boy and girl in the class _____ a different experiment for the science fair. A. do B. does
If it is 12:50, what will the time be 5 hours and 20 minutes later? 5:30 5:50 6:10 6:50
Multiply. Write your answer in simplest form. 3/8x 5/7= 15/56?