Question

daca a:b=5 si a-b=36

Answer 1

a: b = 5
a = 5b
a-b = 36
5b - b = 36
4b = 36
b = 36 : 4 = 9
a = 5 × 9 = 45
a-b = 45 - 9 = 36

Answer 2

Desenam segmentele

a=|-----|------|------|-------|------| =5 părți
b=|-----| = 1 parte
a-b=|------|-------|--------|------|= 4 parti
a-b=36=4 parti
b=1 parte=36÷4=9
a=5 parti =5×a=5×9=45

Verificare
a÷b=45÷9=5
a-b=45-9=36