Răspuns :
x primul nr
y al doilea nr
ai sistemul de ecuatii : x-y=108 si 1/3x=1/7y
y al doilea nr
ai sistemul de ecuatii : x-y=108 si 1/3x=1/7y
Notam cu a si b cele doua numere
b-a = 108
a:3 = b:7 => 7×a = 3×b
a |___|___|___|
b |___|___|___|___|___|___|___|
7 segmente -3 segmente = 4 segmente = 108
108:4 = 27 ( un segment)
a = 3×27 = 81
b = 7×27 = 189
Verificare:
189-81 = 108
81:3 = 189:7
27 = 27
Raspuns:
a = 81
b = 189
b-a = 108
a:3 = b:7 => 7×a = 3×b
a |___|___|___|
b |___|___|___|___|___|___|___|
7 segmente -3 segmente = 4 segmente = 108
108:4 = 27 ( un segment)
a = 3×27 = 81
b = 7×27 = 189
Verificare:
189-81 = 108
81:3 = 189:7
27 = 27
Raspuns:
a = 81
b = 189