Question

va rog este urgentttt dau coroana

Answer 1

1. a).D=328
S=103

D-S=?
D-S= 328-103=225

b). D=582
S=270

D-S=?
D-S=582-270=312

2. n=45+(75-18)
n=45+57
n=102

m=(45+75)-18
m=120-18
m=102
=> n=m

3. t=tata
f=fiu

Cand fiul s-a nascut, tatal avea 29 ani!
a). 52-29=23(ani avea fiul cand tatal avea 52)
b). 28+29=57( ani avea tatal cand fiul avea 28)

4. a+b+c=163
(a+b)-c=67
(b+c)-a=37

=> a+b=67+c
67+c+c=163
2c=163-67
2c=96
c=96:2
c=48

=>b+c=a+37
b+48=a+37
b+11=a
b+11+b+48=163
2b+59=163=>2b=163-59
2b=104
b=52

a=52+11
a=63