Question

1 quilograma de carne custa R$12,00. Qual o preço de tres quartos quilograma dessa carne?

Answer 1

1 Kg de carne = R$ 12,00

3/4 de R$ 12,00
3/4 = 3 ÷ 4 = 0,75
0,75 * 12 = 9

Resposta: 3/4 desse carne custa R$ 9,00.

Answer 2

$1 kg.......12,00\ \\ \frac{3}{4}kg............x \\\\ x=\frac{\frac{3}{\not4}\not kg* \not12,00\ }{1\not kg} \\\\ x= 3* 3,00\ \\\\ \boxed{x=9,00\ }$