Question

Find the value of x to the nearest tenth.

10.0
6.0
9.3
4.0

Answer 1

suppose that the value of other ratio is equal to 6/3 then,

20/3x-8 = 6/3
18x-48 = 60
18x = 60+48
18x = 108
x = 6

Answer 2

The value of x is 6

Explanation:

Given the figure in which

DE=3x-8 and BC=20

we have to find the value of x.

By mid-point theorem which states that the line segment which is drawn to the mid-points of two sides of triangle is parallel to the third side and also half of the length of third side.

`DE=(1)/(2)BC`

`(3x-8)=(1)/(2)* 20`

`3x-8=10`

`3x=18`

`x=(18)/(3)=6`

The value of x is 6

Option 2 is correct.