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Un mester popular a confectionat intru-n an 480 de fluiere,ocarine si viori.Cate instrumente de fiecare fel a confectionat mesterul,stiind ca fluiere si ocarine erau 296,iar ocarine si viori-342?

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4 votes

Answer:

138 fluiere, 158 ocarine, 184 viori

Explanation:

given:

(1) fluiere + ocarine +viori = 480

(2) fluiere + ocarine =296

(3) ocarine + viori =342

din ecuatia (3) avem: viori= 342-ocarine

din ecuatia(2) avem : fluiere= 296-ocarine

in ecuatia (1) inlocuieste ce ai gasit ca sa fie o ecuatie doar cu necunoscuta ocarine: fluiere + ocarine +viori = 480

296-ocarine +ocarine+ 342-ocarine =480

296+342-480 = ocarine =158

viori = 342-158 = 184

fluiere = 296-158 = 138

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