aflati nr x si y, stiind ca sunt direct proportionale cu 5 si 7 si ca media aritmetica este 29.4

Răspunsul a fost dat de: USER3162
29 Agustus 2025 matematica 5 minute
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Întrebare

Clasă: Education Materie: matematica
aflati nr x si y, stiind ca sunt direct proportionale cu 5 si 7 si ca media aritmetica este 29.4
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Cel mai bun răspuns
(137)
7k / 35 + 5k/35 = 2058 / 35 Inmultim relatia cu 35
12k=2058
k=171.5 

 x=171.5 / 5 ⇒ x=34.3
y=171.5 / 7 ⇒ y=24.5
Răspunsul a fost dat în data 29 Agustus 2025

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