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

Are bacterial cells prokaryotic or eukaryotic? Why or why not?.

Which of the philosophers discussed above made the most important impact on modern life? Describe at least two reasons for your answer and carefully cite your e

what do you like in math. like do you like 2 step equations .. linear equations .. square roots .. etc etc ? heres 100 ponits i feel generous

Arturo bought some belts online for $73. He used a coupon code to get a 20% discount. The website also applied a 15% processing fee to the price after the disco

i need help whats 100 plus 20

Which article correctly completes this sentence? J’ai besoin d’ ______ stylo pour écrire.

i really need someones help ):

3 to the seventh power

We toss a die four times. Among all possible outcomes, how many have at least one occurrence of "1"?

Evaluate 2/ 3 ÷ 4 /5 Give your answer as a fraction in its simplest form.