a) (-5) - (-1 3/4)= -5+1¾=-3¼ b) (-2,2) + (10 1/5)=-2,2+10,2=8 c) - (1 1/3) + (-15)=-1⅓-15=-16⅓ d) - (-9) - (4 1/4)=9-4¼=4¾ e) (-3 2/5) - 4,8=-3,4-4,8=-8,2 f) 2 1/3 + (-5 3/5)=2 5/15- 5 9/15=-2 4/15
Zad 1 Oblicz a) (-5) - (-1 3/4) = -3,25 b) (-2,2) + (10 1/5) = 8 c) - (1 1/3) + (-15) = 60/3 = -20 d) - (-9) - (4 1/4) = 4,75 e) (-3 2/5) - 4,8 = -8,2 f) 2 1/3 + (-5 3/5) = 35/15 + (-84/15 ) = -49/15 = -3 4/15 ( 3 calosci i cztery pietnaste )
a) (-5) - (-1 3/4) = -3,25 b) (-2,2) + (10 1/5) = 8 c) - (1 1/3) + (-15) = 60/3 = -18 2/3 d) - (-9) - (4 1/4) = 4,75 e) (-3 2/5) - 4,8 = -8,2 f) 2 1/3 + (-5 3/5) = 35/15 + (-84/15 ) = -49/15 = -3 4/15
Zad.1 Jakim procentem liczby 320 jest liczba 1.6. Zad.2 Towar waży netto 390.60kg. Obliczn wage opakowania, jesli stanowi ona 7% wagi brutto....
