Question

n(n/2)=800
AYUDA POR FAVOR!!!!!​

Answer 1

$\frac{n(n)}{2} = 800\\\\n(n) = 2(800)\\\\n^{2} = 1600\\\\\sqrt{n^{2} } = \sqrt{1600}\\\\n = 40$

Eternamente axllxa

Answer 2

Respuesta:

$\mathrm{\frac{n\left(n\right)}{2}=800}$

$\mathrm{\frac{n^2}{2}=800}$

$\mathrm{\frac{2n^2}{2}=800\cdot \:2}$

$\mathrm{n^2=1600}$

$\mathrm{n=\sqrt{1600}=40}$

Solución:

$\boxed{\mathrm{n=40}}$

Saludos...