Question

va rog frumos urgent​

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

a)

$\it \mathcal{V}=a\cdot b\cdot c\ (produsul\ celor\ trei\ dimensiuni)\\ \\ a=2m;\ \ b=6dm=0,6m;\ \ c=50cm=0,5m.\\ \\ \mathcal{V}=2\cdot0,6\cdot0,5=0,6\ m^3$

b)

Pierderi:

$\it \dfrac{20}{100}\cdot12\cdot0,6=1,44m^3\\ \\ \dfrac{1}{4}\cdot8\cdot0,6=1,2m^3\\ \\ \dfrac{2}{5}\cdot6\cdot0,6=2,44m^3\\\rule{90}{0.5}\\ Total:\ \ 4,08m^3=4080000cm^3$

$\it 4080000\cdot1,2=4896000g=4896kg=4,896t\ (matyerialui\ pierdut)$