Question

VA ROOOG FOARTE MUUULT LA 4 EXERCITII CU SEGMENTEEEEE!!!30 Puncte!!!REPEDEEEEEEEEEEEEEEE!!!!12,14,15 SI 17

Answer 1

13)a+b+c+d=588
a=!___!
b=!___!+2
c=!___!+4
d=!___!+6
588-(2+4+6)=576
576:4=144-primul nr (a)
144+2=146-al doilea nr (b)
144+4=148-al treilea nr(c)
144+6=150-al patrulea nr d
P:144+146+148+150=588

14)a+b+c+d=?
b+d=406
a=!___!+1
b=!___!+3
c=!___!+5
d=!___!+7
b+d=406-(3+7)=406-10=396:2=198
a=198+1=199
b=198+3=201
c=198+5=203
d=198+7=205
199+201+203+205=808-suma celor 4 numere
Proba:201+205=406

15) a-b=120
a> 2×b+26
a=120+b
2×b+26-b=120
b=120-26
b=94
a=2×94+26=188+26=>a=214
Proba :a-b=120
214-84=120

17)G+R+V=2 457-beculete
G=!___!
R=!___!+243
V=!___!+243+243
2 457-(243+243+243)=2457-729
1728:3=576-beculete galbene G
576+243=819-beculete rosii R
819+243=1 062 beculete verzi V
P:576+819+1 062=2457