Question

CB = 2x, BD = 4x and CD = 12. What is the value for x and BC if B is between C and D?

Answer 1

We can pose this question in the following way:

The value for x and BC are:

`2x+4x=12\Rightarrow6x=12\Rightarrow(6)/(6)\cdot x=(12)/(6)\Rightarrow x=2`

Then, x = 2. And BC is :

`BC=2\cdot x=2\cdot2\Rightarrow BC=4`