Question

how would you solve a proportion of 1/49w=w/9

Answer 1

\[\huge \frac{1}{49w} = \frac w9?\]

Answer 2

correct

Answer 3

cross multiply
\[\huge \frac{9}{49} = w \times w\]
do you get this step?

Answer 4

\[w=\sqrt{9/49}\]

Answer 5

ah I did cross multiply but the exponent of w threw me off

Answer 6

hmm did you do \[\huge w^2 = \frac{9}{49}?\]

Answer 7

yes

Answer 8

vladislav mentioned \[\sqrt{9/49}\]

Answer 9

this makes sense :D

Answer 10

yup that's the next step..taking the square root of both sides
\[w = \sqrt{\frac{9}{49}}\]
\[w = \frac{\sqrt 9}{\sqrt{49}}\]
i suppose you know the answer now?

Answer 11

yes thank you very much ^_^

Answer 12

you're welcome :)