Question

porcentagem quanto é 500-30%​

Answer 1

Resposta:

350

Explicação passo-a-passo:

500-30% = 500-500*0,3 ou 500*0,7 = 350

Answer 2

$\sf \displaystile500-30\%}\\\\\\=500-\displaystyle{\frac{3}{10}}\\\\\\=\frac{500\cdot \:10}{10}-\frac{3}{10}\\\\\\{J\acute{a}\:que\:os\:denominadores\:sao\:iguais,\:combine\:as\:fracoes}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}\\\\\\=\frac{500\cdot \:10-3}{10}\\\\\\\to \boxed{\sf \red{\sf =\frac{4997}{10}}}$