Question

dacă x= 3 di y+z=10 calculeaza
B) 17•x+17•y+17•z-10;
C) 5•x+10•y+10•z;
D)100•x-(9•y+9•z)
• este x

Answer 1

X = 3
Y + Z = 10

17 × X + 17 × Y + 17 × Z - 10 =

= 17 × ( X + Y + Z ) - 10 =

= 17 × ( 3 + 10) -10 =

= 17 × 13 - 10 =

= 221 - 10 =

= 211

C) 5•x+10•y+10•z =
= 5 × [X + 2 × ( Y +Z)] =
= 5 × (3 + 2 × 10) =
= 5 × 23 =
= 115

D) 100•x-(9•y+9•z) =
= 100 × 3 - 9 × ( Y +Z) =
= 300 - 9 × 10 =
= 300 - 90 =
= 210