Question

find w...
15/w = w/15-w

Answer 1

\[\frac{ 15 }{ w }=\frac{ w }{ 15 }-w\]

Answer 2

get a common denominator on the right so you can get one fraction

Answer 3

\[ \frac{ 15 }{ w } = \frac{ w }{ 15-w }\]

Answer 4

Sry, I just realized I was using the wrong equation

Answer 5

cross multiply your equation

Answer 6

225-15w=w^2

Answer 7

set it equal to zero

Answer 8

0 = w^2 + 15w -225

Answer 9

Use the quadratic formula to solve for w

Answer 10

When you have the form\[ax^2+bx+c=0\]Quadratic formula is\[x=-b \pm \frac{ \sqrt{b^2-4ac} }{ 2a }\]

Answer 11

\[w=-15\pm \frac{ \sqrt{15^2-4*1*-225} }{ 2*1 }\]

Answer 12

sry for the confusion. Do the math above and you should have your answer. There will be 2 answers

Answer 13

one was 9.3, i guess thats the more reasonable answer cause the other was negative