maths question help (1 Viewer)

[kooltrainer]

a=root(b/c)
if i increase c by 3% what is the resultant percentage decrease in a?

 

[ohexploitable]

Are you serious?

Maths 4u =95
Maths 3u =97

Anyway...



a is decreased by 1.47%.

 

[blackops23]

Are you serious?

Lol maybe that's his goal or something

Anyway, kooltrainer do you get it, it's pretty simple really,

you increase c by 3%, means u get 1.03*c
But now you've changed the right side which means you need to do the same shiz you did on the right, to the left side.
So you divide by (1.03)^0.5

And so (a) has changed from 100% to 1/(1.03)^0.5 percent
so just do 1- [1/(1.03)^0.5] to get the percentage change...

 

[slyhunter]

Lol maybe that's his goal or something

Anyway, kooltrainer do you get it, it's pretty simple really,

you increase c by 3%, means u get 1.03*c
But now you've changed the right side which means you need to do the same shiz you did on the right, to the left side.
So you divide by (1.03)^0.5

And so (a) has changed from 100% to 1/(1.03)^0.5 percent
so just do 1- [1/(1.03)^0.5] to get the percentage change...

Um, he's at uni bro.

 

[blackops23]

Um, he's at uni bro.

lol wtf, why was he asking this question then..?