VA ROG FRUMOS SA MA AJUTATI!
1. Media artimetica a 3 nr. este 28. Doua dinte nr. sunt 32 si 18. Care este al treilea nr.?
2. Media aritmetica a numerelor 15; x; 13; 3·x este 17. Calculati x.

Răspunsul a fost dat de: USER7547
30 Agustus 2025 matematica 5 minute
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Clasă: Education Materie: matematica
VA ROG FRUMOS SA MA AJUTATI!
1. Media artimetica a 3 nr. este 28. Doua dinte nr. sunt 32 si 18. Care este al treilea nr.?
2. Media aritmetica a numerelor 15; x; 13; 3·x este 17. Calculati x.
Întrebare a fost pusă de:
204 Vezi 204 Răspunsuri

Răspuns (204)

Cel mai bun răspuns
(189)
ex1
28+32+18=26
---------------------------------
ex. 2 cred ca e gresit 
ex 1este corect
-------------------------------
mult succes in continuare

Răspunsul a fost dat în data 30 Agustus 2025
(144)
(32+18+a):3=28
50+a=84
a=34

(15+x+13+3x):4=17
28+4x=68
4x=40
x=10
sper ca team ajutat


Răspunsul a fost dat în data 30 Agustus 2025

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