8x(0,2 x 15-2,4)= 0,6x(1,2-0,7)+3= 45,6-2,4:(3,46-3,4)=
aneczka1598
A) 8*(0,2*15-2,4)=8*(2/10*15-24/10)=8*(3-24/10)=8*(30/10-24/10)=8*6/10=24/5=4,8 b) 0,6*(1,2-0,7)+3=6/10*(12/10-7/10)+3=6/10*5/10+3=3/10+3=3/10+30/10=33/10=3,3 c) 45,6-2,4:(3,46-3,4)=456/10-24/10:(346/100-34/10)=456/10-24/10:(346/100-340/100)=456/10-24/10:6/100=432/10:6/100=432/10*100/6=720
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młody191041
A mosz napisac mi pytanie byłbym wdzięczny
b) 0,6*(1,2-0,7)+3=6/10*(12/10-7/10)+3=6/10*5/10+3=3/10+3=3/10+30/10=33/10=3,3
c) 45,6-2,4:(3,46-3,4)=456/10-24/10:(346/100-34/10)=456/10-24/10:(346/100-340/100)=456/10-24/10:6/100=432/10:6/100=432/10*100/6=720