Question

HELP QUESTION BELOW! make r subject

Answer 1

\[A = D (1 + \frac{ r }{ 100 })^{2}\]

Answer 2

Solve for r you mean?

Answer 3

@FibonacciChick666 make r the subject of the equation.

Answer 4

then I do not know. I have never heard that terminology. I would assume it means solve for r.

Answer 5

@FibonacciChick666 it means like change it so instead of A = blah blah blah it r = blah blah blah

Answer 6

ok that is the same as solve for r

Answer 7

so reverse order of operations what can you do first?

Answer 8

yeah thats the one. i don't mean to be invading privacy but where abouts do you call it that?
and i started by dividing by D, but i don't know what to do from there @FibonacciChick666

Answer 9

ok, dividing D that is correct. And that's what you say in the USA. typically. so now that stuff on the right is squared right? so how do we undo that?

Answer 10

make it into a square root @FibonacciChick666

Answer 11

(you don't have to tag me every time) but yes remember take the square root of both sides, then tellme what you get

Answer 12

ok i wont hah, and do i square root the whole 1 + r/100 or sqroot 1 sqroot r/100

Answer 13

the whole

Answer 14

now what should i do

Answer 15

what do you have?

Answer 16

\[\sqrt{\frac{ A }{ D }} = \sqrt{1+\frac{ r }{ 100 }}\]

Answer 17

not quite remember we were getting rid of something by taking the square root of the right side

Answer 18

Would it be the same but without the 1?