Question

I’m confused on this one

Answer 1

So for this we will be doing proportions. And in this case the proportions will be
`(5)/(4x) =(3)/(2x+2)`

Firstly, cross multiply:
`10x+10=12x`

Next, subtract 10x on each side of the equation:
`10=2x`

Lastly, divide 2 on each side of the equation, and your answer should be 5 = x

Next, to find BD, just multiply 5 and 4 together, which equal 20.

To find CE, plug in 5 into the x variable of 2x+2.

`2(5)+2\\ 10+2\\ 12`

In short, the correct answer is the first option.