Question

Rezolvati inecuatiile in N
X+76.2<80
X-39.6>0.847
875.94-x < sau egal 708.6
683+y> sau egal 689.45
2y-(56-32.8)< sau egal y+(48.2-29.75)
Explicatt va rog !
Cel mai bun raspuns+puncte !!!!

Answer 1

x+76.2<80
x<3,8     ⇒x∈[0 ; 3]

x-39.6>0.847 
x>40,447     ⇒x∈[41 ; +∞)

875.94-x ≤ 708.6 
x≥167,34    ⇒x∈[168 ; +∞)

683+y≥ 689.45 
y≥6,45       ⇒y∈[7 ; +∞)

2y-(56-32.8)≤ y+(48.2-29.75) 
2y-23,2≤y+18,45
y≤4,75      ⇒y∈[0 ; 4]