nc15007 nc15007
  • 01-04-2022
  • Mathematics
contestada

If x and y vary inversely, and x = 8 when y = 1/4, what is y when x = -4?

Respuesta :

loneguy
loneguy loneguy
  • 01-04-2022

[tex]y \propto \dfrac 1x\\\\\implies y = \dfrac kx \\\\\implies \dfrac 14 = \dfrac k{8}\\\\\implies k=2\\\\\text{When}~ x =-4\\\\y = \dfrac{k}{x} = \dfrac{2}{-4}= -\dfrac 12[/tex]

Answer Link

Otras preguntas

For each function f, find f^-1 and f^-1(5). f={(-1,5), (0,0), (2,6)}
simplify fully 40/56​
at the market opening, a customer purchases 200 shares of an S&P 500 inverse etf (-1x) at $50 per share. At the end of that day, the s&P 500 index decli
Joe and Ann buy some fruit from the same shop. Joe buys 4 apples and 3 bananas for £2.50 Ann buys 3 apples and 4 bananas for £2.40 Work out the cost of (i) one
Which of the following statements is correct for a person that has active Hepatitis B? A. Symptoms may or may not be present B. Infected person's will have jaun
Joe and Ann buy some fruit from the same shop. Joe buys 4 apples and 3 bananas for £2.50 Ann buys 3 apples and 4 bananas for £2.40 Work out the cost of (i) one
simplify fully 40/56​
simplify fully 40/56​
Solve each of the following equations. Show its solution set on a number line. Check your answers. |3x-2| = 19
anyyyy girrllll online hereeeere m soo bored​