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

PLEASE HELP I GIVE THANKS
18/48 as it's simplest form?
Which one of the following molecules is a by-product of cellular respiration? A. Glucose B. Water* C. Oxygen D. Pyruvate
40 percent of the 35 male guests wear glasses. Write the number of male guests who wear glasses as a fraction of the 56 guests. Give your answer in its simplest
An experiment requires 40.0g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense
The legs of an isosceles right triangle are 5 inches long. What is the length of the hypotenuse of the triangle to the nearest inch?
What was Vladimir, Grand Prince of Kiev, known for? A. After sending out men to investigate various religions, he chose Eastern Orthodox Christianity as the sta
Complete the well-know saying: __________ blot ___________ copybook! ______________ not over till ___________ over.
Look down below for question:
who was the king that got executed in the 17th century