Question

media aritmetica a 5 numere consecutivă este 20.afla numerele

Answer 1

(a+a+1+a+2+a+3+a+4)/5=20
5a+10=100
5a=100-10
5a=90
a=18
nr sunt 18,19,20,21,22

Answer 2

a+b+c+d+e=20
a,b,c,d,e=numere.consecutive
a,b,c,d,e=?
a=1segment
b=1segment+1
c=1segment+1+1
d=1segment+1+1+1
e=1segment+1+1+1+1
20-10=10(5segmente.egale)
10:5=2(a)
2+1=3(b)
2+1+1=4(c)
2+1+1+1=5(d)
2+1+1+1+1=6(e)
Verificare:2+3+4+5+6=20
Sper ca te-am ajutat!