Răspuns :
a+b = 390
a:b = 4 -> a = b/4
a+b = 390
b/4+b = 390
b+4b = 1560
5b = 1560
b = 1560/5
b = 312.
a+b = 390
a+312 = 390
a = 390-312
a = 78.
Verificare: a+b = 78+312 = 390.
I hope I helped you :)
a:b = 4 -> a = b/4
a+b = 390
b/4+b = 390
b+4b = 1560
5b = 1560
b = 1560/5
b = 312.
a+b = 390
a+312 = 390
a = 390-312
a = 78.
Verificare: a+b = 78+312 = 390.
I hope I helped you :)
Fie a si b cele doua numere
a + b = 390
a : b = 4 => a = 4×b
a |____|____|____|____|
b |____|
avem 5 segmente egale = 390
390 : 5 = 78 ( un segment)
a = 78 × 4 = 312
b = 78
Verificare:
312 + 78 = 390
Raspuns:
a = 312
b = 78
a + b = 390
a : b = 4 => a = 4×b
a |____|____|____|____|
b |____|
avem 5 segmente egale = 390
390 : 5 = 78 ( un segment)
a = 78 × 4 = 312
b = 78
Verificare:
312 + 78 = 390
Raspuns:
a = 312
b = 78