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Rebecablu27
a fost răspuns

determina cele trei numere a b c stiind ca

a plus b plus c=905 b/a=3 rest 3 c/b=20 rest 10


dau coronita cine face primul

Răspuns :

Geoden30

a+b+c=905

b:a=3 rest 3->b=3a+3

c:b=20 rest 10->c=20b+10

a+3a+3+20(3a+3)+10=905

a+3a+3+60a+60+10=905

64a+73=905

64a=905-73

64a=832

a=832:64

a=13

b=3×13+3=39+3

b=42

c=20×42+10=840+10

c=850

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