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

¿Y Roberto y Pablo? (construir un edificio)
The perimeter of the square shown is 4(x+33) meters. What is the value of x if the perimeter is 28 meters
Y-(-2)=1/3(x-5) please help me
Integration were significantly more possible for ___ immigrant groups than for the group formed under conquest or colonization
Research has highlighted the importance of what region of the brain in the process of dreaming?
the length of a rectangle is as twice as great as it's width. when both the width and height are increased by 5 inches the new rectangle has a premetwe of 80 in
Steps to Solve the equation 6+4×=×+30
Help please practical math
When virginia and kentucky in the late 1700s and south carolina in the 1830s refused to follow federal law they were practicing a.federalism. b.nullification. c
In 150 words or less, provide one example of how Roger Williams's views were similar to the other Puritans of the Massachusetts Bay Colony and one way in which