Question

Se 450kg de feijao custa 2.00 reais quanto custa 3.5kg desse feijao

Answer 1

Aplicando regra de 3:

450----2
3,5-----x
450x=2*3.5
450x=7
x=7/450
x=0.015

Answer 2

 Olá ,,,


 Colocando a regra de 3:

450--2

3,5--x

450x = 2 * 3 . 5

450x = 7

x = 7 / 450

x = 0.015


 Ok ,,,