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

5+6 = what and i do not know
What are the domain and range of the step function below? a) domain= {all real numbers}, range = {all real numbers} b) domain= {all real numbers}, range= {…-4
Find the slope and the y intercept of the equation-4y-2x=-7
10. How many amino acids will result from the translation of the mRNA sequence AUG-CUG-GAG-CUC-UAG?
What did Rudy have to do to get free tutoring?
A bowl contains & green grapes, 10 red grapes and 8 black gomps 1 following of probality of Choosing which of the a red grupe 6x-15 = 6 and then without put
Bonjour, j'ai un DM de maths de niveau spé Maths 1ere, j'ai quelques difficultés dans cette matière mais j'ai tout de même tenter de réaliser ce travail, cepend
Given a line that passes through the points (-2,9) and m=-4 write the equation of this line in each form
This refers to the concept or idea of the title.
Does meiosis uses oxygen to produce ATP