Question

HELP PLEASEEEEEEEEEEEEEEEEEE

Answer 1

The answer you seek is 5. Enjoy 

Answer 2

Answer: The value of 'n' is 6.

Step-by-step explanation:  Given that ΔXWZ is an isosceles triangle, where XZ = n, WZ = 2n - 5, and the perimeter of the triangle is 20 units.

We are to find the value of 'n'.

As given in the figure, in ΔXWZ,

WX = WZ.

So, WX = 2n - 5.

We know that the perimeter of a triangle is equal to the sum of its three sides, so the perimeter of ΔXWZ is given by

$P=XZ+WX+WZ=n+(2n-5)+(2n-5)=5n-10.$

According to the question, we have

$P=20\\\\\Rightarrow 5n-10=20\\\\\Rightarrow 5n=30\\\\\Rightarrow n = 6.$

Thus, the value of 'n' is 6.