Question

Va rog. Dau coroana ​

Answer 1

Răspuns:

60·[(1,2)⁶:(1,2)⁰:(1,2)⁴-0,9]+114,6=

60·[(1,2)⁶⁻⁰⁻⁴-0,9]+114,6=

60·[(1,2)²-0,9]+114,6=

60·(1,44-0,9)+114,6=

60·0,54+114,6=

32,4+114,6=147

a=147 ferestre

_____________

a=ferestre deschise;b=ferestre inchise

a+b=147

b=a/6=>a=6b

6b+b=147

7b=147=>b=147:7=>b=21 ferestre inchise

a=6·21=126 ferestre deschise