Question

va rog urgent este la mate
dau COROANĂ!!!​Repede

Answer 1

Răspuns:

1. a+b=600

a=3b

3b+b=600

b=600:4=>b=150

a=3×150=>a=450

2. a+a+2+a+4=306

3a=306-6

a=300:3=>a=100

nr consecutive pare sunt:100 , 102 , 104

3. a+a+2+a+4=303

3a=303-6

a=297:3=>a=99

nr consecutive impare sunt: 99 , 101 , 103

4. a+b=45

a=b+15

b+15+b=45

2b=45-15

b=30:2=>b=15

a=15+15=>a=30