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

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning
The function described as consumption and the absorption of energy through photosynthesis is called A. Respiration B.Energy absorption/food consumption C.excre
in Austin Texas 8 bats ate 40 grams of insects in one night at this rate how many grams of insects could 64 bats eat in one night​
What are the biggest challenges facing the average American citizen today? Explain.
The bishnoi conservationist is take care of nature and grow with it, instead of exploiting it explain the statement
what are some characteristics of a free enterprise economy?
Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)>0
50 POINTS!! WILL MARK BRAINLIEST!! SHOW ALL WORK!! Use the linear combination method to solve the system of equations. Explain each step of your solution. If st
HELP! They also make slight swaying movements to mimic leaves and grass moved by the wind. Based on the text, to mimic is most likely which of the following? A
The John Deere company has found that revenue,in dollars, from sales of heavy-duty tractors is a function of the unit price p, in dollars, that it charges. If t