Question

Hey! Ajutatima la probleme! De la 4 la 8 inclusiv. DAU COROANA!!!!

Answer 1

a+b+c=186
a/b=3 rest 4⇒a=3*b+4
b/c=4 rest 3⇒b=4*c+3
a=3*(4c+3)+4
a=12c+9+4

a+b+c=186
12c+9+4+4c+3+c=186
17c+16=186⇒17c=186-16⇒c=170/17⇒c=10
b=4*c+3⇒b=4*10+3⇒b=43
a=3*b+4⇒a=3*43+4⇒a=133
verif:
a+b+c=186
133+43+10=186    ---> ex 4


a+b+c=57
a:b=3 rest 2⇒a=3b+1
b:c=3 rest 1⇒b=3c+1⇒a=3*(3c+1)+1⇒a=9c+3+1
a+b+c=57
9c+3+1+3c+1+c=57|-5
13c=52|:13
c=4
b=3c+1
b=4*3+1
b=13
a=3b+1
a=13*3+1
a=40 ------> ex 6



22:5=4 r 2
26:6=4 r 2
30:7=4 r 2 --> ex 7
impartitorul >8 deci 9
9x8+8=80     --> ex 8

 scuze ex 5 nu mi-a iesit Coroana?