Question

Can someone help me through this? http://prntscr.com/5asu2w

@Jhannybean @Secret-Ninja @razor99 @geerky42 @bloopman

Answer 1

Yeah sure, give me a second.

Answer 2

\[A = \frac{ 2b}{ 13}\]

Answer 3

\(\large\tt \begin{align} \color{black}{\dfrac{8}{15}=\dfrac{4a}{a+b}\\~\\
\dfrac{2}{15}=\dfrac{a}{a+b}\\~\\
\dfrac{15}{2}=\dfrac{a+b}{a}\\~\\
\dfrac{15}{2}-1=\dfrac{a+b}{a}-1\\~\\
\dfrac{15-2}{2}=\dfrac{a+b-a}{a}\\~\\
\dfrac{13}{2}=\dfrac{b}{a}\\~\\
\dfrac{2}{13}=\dfrac{a}{b}\\~\\
}\end{align}\)

Answer 4

So, could you answer from there?

Answer 5

\[\frac{8}{15}=\frac{4a}{a+b}\] euate the numerators and the denominators to eachother.
\[8=4a\] solve for a\[15 = a+b\]

Answer 6

so \[8 = 4a\]\[a=\frac{8}{4} = 2\]\[15 = 2 +b\]\[b=13\]