
Por Fabiana Werneck em 10/11/2017 17:23:38
2,2 t + 1,8 t = 4,0 t
1980/4 = 495
495*2,2 = 1089,0
495*1,8= 891,0
1089,0 - 891,0 = 198
1980/4 = 495
495*2,2 = 1089,0
495*1,8= 891,0
1089,0 - 891,0 = 198

Por Julia Jesus Henrique em 30/01/2019 14:14:22
A + B = 1980
A/2,2 = B/1,8 = A+B/2,2+1,8 = 1980/4 = 495
A/2,2 = 495
A = 495*2,2
A = 1089
B/1,8 = 495
B = 495*1,8
B = 891
A-B = 1089-891
A-B = 198
A/2,2 = B/1,8 = A+B/2,2+1,8 = 1980/4 = 495
A/2,2 = 495
A = 495*2,2
A = 1089
B/1,8 = 495
B = 495*1,8
B = 891
A-B = 1089-891
A-B = 198