Question

Calculeaza:
a) (4/5+0,2·0,4):11/100
b) [9,7+(18,03-11/2)·10]:5
c) [3/4+(0,5)²³:(0,5)²¹-0,2(3)]:23/5
Va rog ajutati-ma

Answer 1

a) (4/5+0.2*0.4):11/100=8
   1.  0.2*0.4=0.08
   2.  4/5+0.08=0.88
   3.  0.88:11/100=8
b) [9.7+(18.03-11/2)*10]:5=27
   1.  18.03-11/2=12.53
   2.  12.53*10=125.3
   3.  9.7+125.3=135
   4.   135:5=27
c) [3/4+(0.5)²³:(0.5)la a 21-0.2(3)]:23/5=0.1(6)
   1.  (0.5) la a 23: (0.5) la a 21=(0.5)²=0.25
   2.  3/4+0.25=1
   3.  1-0.2(3)=0.7(6)
   4.  0.7(6):23/5=0.1(6)

sper ca te-am ajutat