Question

150 pounds shared into the ratio of 4:1

Answer 1

`\begin{cases}x+y=150\smallskip\\(x)/(y)=(4)/(1)\end{cases}\Leftrightarrow\begin{cases}x+y=150\smallskip\\x=4y\end{cases}\Leftrightarrow\begin{cases}5y=150\smallskip\\x=4y\end{cases}\Leftrightarrow\begin{cases}y=30\smallskip\\x=120\end{cases}`

`150=120+30`