Question

Can please just slove 9 is the answer 20 yes or no

Answer 1

`(CD)/(CA)=(CE)/(CB)`

To find CD, you solve the equation above for CD:

As CD is beeing divided into CA, you multiply both sides of the equation by CA:

`\begin{gathered} CA\cdot(CD)/(CA)=CA\cdot(CE)/(CB) \\ \\ CD=(CA\cdot CE)/(CB) \end{gathered}`

Then, for the given values:

`CB=CE+EB`
`CD=(CA\cdot CE)/(CE+EB)`

`CD=(18\cdot20)/(20+25)=(360)/(45)=8`