Question

Aflati suma numerelor care impartite la 10 dau catul 4.

Pls!!!

Answer 1

Răspuns:

(a+b):10=4

a+b=4x10

a+b=40

Explicație pas cu pas:

Answer 2

a:10=b rest 4

=>a=10×b+4

Daca b=0=>a=10×0+4

=4

Daca b=1=>a=10×1+4

=14

Daca b=2=>a=10×2+4

=24

Daca b=3=>a=10×3+4

=34

Daca b=4=>a=10×4+4

=44

Daca b=5=>a=10×5+4

=54

Daca b=6=>a=10×6+4

=64

Daca b=7=>a=10×7+4

=74

Daca b=8=>a=10×8+4

=84

Daca b=9=>a=10×9+4

=94

S=4+14+24+34+44+54+64+74+84+94

S=(94+4)+(84+14)+(74+24)+(64+34)+

(54+44)

S=98+98+98+98+98

S=98×5

S=490

Rezultat:490