Question

ex 3.4.5 Dau corona!!!! Repedde am 20% ♡♡♡ 20 pct + 1 ♡

Answer 1

3. a) 1000 + 250 + 500 = 1750 - Diana

200 + 300 = 500 - Alexandru

b) 1750 + 500 = 2250

c) 1750 - 500 = 1250

4. a + b = 45

a = 4b

din cele doua rezulta ca 5b = 45 => b = 9

a = 4*9 => a = 36

5. a) Adevarat b) Adevarat c) Fals