Mathematics, 26.09.2019 01:30, datboyjulio21

La un concurs de matematica se dau spre rezolvare 6 probleme si pentru fiecare problema rezolvata corect si complet se acorda 7 puncte, pentru fiecare problema gresita sau rezolvata incomplet se scade 10 puncte, iar pentru fiecare problema neacordata se scade un punct. andrei a obtinut la concurs 17 puncte. cate probleme a rezolvat corect?

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La un concurs de matematica se dau spre rezolvare 6 probleme si pentru fiecare problema rezolvata co...