Question

suma a doua numere este 2350.primul numar este egal cu3/7 din al doilea.sa se afle numetele

Answer 1

1 nr /-----/-----/-----/------/------/------/------/

2 nr /-----/-----/-----/

total 2350

2350:10=235

1 nr =235x7=1645

2 nr=235x3=705

sau:

notam numerele cu a si b

a=3/7din b=3b/7

a+b=2350

3b/7+b=2350

(3b+7b) / 7=2350

10b=2350x7

b=235x7=1645

a=3b/7=3x1645:7=705

Answer 2

a+b = 2350
a= 3/7*b
3/7*b+b=2350
aducem la acelasi numitor comun 7
3*b+7*b=7*2350
10*b=16,450
b=16,450:10
b=1645
a=3/7*1645
a=( 3*1645 ) /7
a= 4935:7
a= 705
Verificare :
a+b=2350
705+1645=2350
2350=2350 ( A )