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Za 3 dny bylo prodáno 245 vstupenek . Druhy den prodáno o třetinu víc než prvni den a zároveň o 15 min nez třetí den . Neznámý počet první den X . Kolik každý den ?
Kde mam prosim chybu:1/3(x-1)-1=1/2(x+1) Tj. 2(6x-6)-6=3(6x+6) Tj 12x-12-6=18x+18 tj 12x-18x=18+18 tj -6x=36 tj x=-6 ??
Dobrý den, mohu poprosit o pomoc s jedním příkladem. Je dána kružnice(k) zadaná středovou rovnicí:(x-3) na2+(y+12)na2=100 a vnější bod X1(5,2) který neleží na rovnici. NAJDI TEČNY. Mělo by to vyjít:…
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