Question

tres numeros naturais consecutivos somam 63.quais são os numeros?


somando a quarta parte da idade de carlos com a propria idade,resulta 45 qual a idade de carlos?

Answer 1

$x+(x+1)+(x+2)=63\to\\\\ x+x+x=63-1-2\to\\\\3x=60\to\\\\x= \dfrac{60}{3} \to \\\\ x=20\\\\\\\\ x=20~;\\x+1\to ~~20+1=21~;\\x+2\to~~20+2=22\\\\ 20+21+22=63\\\\\\\\\\Resposta:~~Os~~ nu\´meros~~ s\~ao~~\{20~;~21~;~22\}$





$\dfrac{x}{4} +x=45\to~~mmc=4\\\\ x+4x=180\to\\\\ 5x=180\to\\\\ x= \dfrac{180}{5}\to\\\\ x=36\\\\\\\\Resposta:~~A~~idade~~de~~Carlos~~e\´~~igual~~a~~36~~anos.$