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

In slope-intercept form, what is the equation of the line passing through the points (2, 13) and (5, 22)
Organizations of skilled workers who band together for bargaining power.
How many ways can you select 4 volunteers out of 13?
x^2-6x+18 in vertex form
An abnormal, rounded, solid lump above, within, or under the skin is a(n):
Sam bought a total of 25 hamburgers and hot dogs. his total bill was $70.50. if each hamburger cost $3 and each hot dog cost $2.50, how many hot dogs did sam bu
Which of these social thinkers views society as divided into two broad classes of people—the "haves" and the "have-nots"?
if two cites are 3 inches apart on a map how far would they be in real life ?
1/3 if the guests choose beef 5/12 of the guests choose chicken and 23 of the guest choose vegetarian how many guests were at the wedding
While poison is the main suspect in the case, what are other ways a person could die of hypoxia?