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Vă roooog ex.3!!!!Coroană+mulțumesc+5 puncte!!!!

Vă Roooog Ex3Coroanămulțumesc5 Puncte class=

Răspuns :

I zi: x/4+9km
a II-a zi: (x-x/4-9km)/2 +6km= (3x/4-9km)/2+6km
aIII-a zi: 15km
x/4+9km+(3x/4-9km)/2 +6km+15km=x |·2
x/2+18km+3x/4-9km+12km+30km=2x
x/2+3x/4+51km=2x
2x-x/2-3x/4=51km |·4
8x-2x-3x=204km
3x=204km
x=204km:3=68km distanța drumului

Prima zi: 68/4+9=17+9=26km
A doua zi: 68km-26km-15km=27km