Răspuns:
Explicație pas cu pas:
a) a/b=360/250=36/25=(6/5)²
b)x/5=7/y ⇒ xy=35
2xy-7=2×35-7=70-7=63
c)27/x=81/96=27/32 1/x=1/32 x=32
a)360/250=36/25 ; b) xy=7 x 5=35 ; 2xy+7=2 x35 +7=77; c) x= 27 x 96/81 =96/3=32
