Question

a+b+c=517 a=b×4 c=a+4 metoda grafică (figurativă)​

Answer 1

Metoda grafică ( figurativă )

a |---|---|---|---|

b |---|

c |---|---|---|---| + 4

Suma lor = 517

517 - 4 = 513 => suma celor 9 segmente egale

b = 513 : 9 = 57

a = 57 × 4 = 228

c = 57 × 4 + 4 = 228 + 4 = 232

Answer 2

a /-----/-----/-----/-----/

b /-----/

c /-----/-----/-----/-----/ +4 }517

517-4=513

513:9=57 (b)

57×4=228 (a)

228+232 (c)

VERIFICARE:228+232+57=517 (CORECT)