Respostas

A melhor resposta!
2014-08-08T11:21:31-03:00
23/25 = 1380  1380*25 = 23x   23x= 34500  x = 34500/23 = 1500m

a) 84/7 = 12 *3 = 36

b) 405/5 = 81 *4 = 324

c) 10500/10 = 1050*9 = 9450
1 5 1