Question

calculati valoarea expresiei 9x + 6y + 12z pentru:
a) x=5, y=2, z= 3 intregi si 1 supra 4;
b) x= 0,5(8), y = 1 supra 3 , z= 1,0(3)
Urgent !! ofer coroana celui mai bun raspuns!

Answer 1

x=5
y=2
z=3 1/4 =13/4
9x + 6y + 12z =9*5+6*2+12*13/4=45+12+39=96
x=0, 5(8)=(58-5)/90=53/90
y=1/3
z=1,0(3)=(103-10)/90=93/90
9x + 6y + 12z =9*53/90+6*1/3+12*93/90=53/10+2+62/5=
=(53+10+124)/10=197/10= 19 intregi si 7/10