Question

Proszę, pomóżcie. Mam to na ocenę.

Answer 1

A) 4,67-(3 5/6- 1/3)= 4,67- (23/6 - 1/3)= 4.67- ( 23/6-2/6)=4.67-21.6=4 67=100- 3 5/10=4 67/100- 3 50/100=1 17/100=1,17

b)2,8+ 1 1/3*0.9= 2,3+(4/3*9/10)= 2,8+ 6/5= 2 8/10+ 6/5= 2 8/10+ 12/10= 2 20/10=4

c)(3,6:3/5)-1 1/5=(3 6/10:3/5)-1 1/5= 26/10:3/5- 1 1/5=12/2-6/5=60/10-12/10=48/10=4,8

d) 0.04*(1,6- 2/5)= 0,04* ( 1,6-0,4)= 0,04*1,2=0,048

e) (2,8*1 1/4)-(2/3*0,75)=2,80*1,25-0.67*0,75=3,50-0,67*0,75=3,50-0,50=3

f) (4,5-1,1)*2*3/4-1= 6,8*0,75-1=5,1-1=4,1