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13 May, 06:57

Calculați: a) 25% din 100 m b) 30% din 12,05 km c) 40% din 60 m2 (metru patrat) d) 32% din 3 1 supra 3 kg e) 0,1 % din 10 l

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  1. 13 May, 07:16
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    A) (25 / 100) * 100 = 25 m;

    b) (30 / 100) * (1205 / 100) = 36150 / 10000 = 3615 / 1000 = 3,615 km ≈ 3,62 km;

    c) (40 / 100) * 60 = (4 / 10) * 60 = 4 * 6 = 24 m^2;

    d) 3 1 / 3 = 10 / 3;

    (32 / 100) * (10 / 3) = 320 / 3 = 106,66 kg;

    e) (1 / 10) : 100 * 10 = (1 / 10) * (1 / 100) * 10 = 1 / 100 = 0,01 l;

    Good luck!
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