mosope39
mosope39 mosope39
  • 03-08-2021
  • Mathematics
contestada

if √x-5 varies directly as y and x=30 when y= 2, find the value of x when y=8.​

Respuesta :

Аноним Аноним
  • 05-08-2021

Answer:

let,

√x-5=ky

x=30 when y=2

√30-5=2k

or, k=(√30-5)/2

now, when y=8

√x-5=8×(√30-5)/2

or, √x-5=4√30-20

or, √x=4√30-15

or, x=(4√30-15)²

or, x=47.73..

Answer Link

Otras preguntas

If you answer parts one and 2 ill give you brainiest and 30 points
Identify m∠F. PLEASE HELP!!
to say that something is behind something else, we would use — de
Identify how often people usually think critically. A.twice a month B.once a week C.every day D.a few times a year
Evaluate cube root of 2×4^2/3 divided by 128^1/3
to say that something is behind something else, we would use — de
How do I get home? A sentence or a fragment
What is the slope and y-intercept in the equation y = 5x - 7?
what steps has the international community taken to address humanitarian crises throughout the twentieth and twenty-first centuries
An electron moved from a higher energy level to a lower energy level. What most likely happened during the transition?