Question

Va rog aceste 2 exerciții

Answer 1

x=suma de bani

x/4 = cheltuiala 1

x-x/4=3x/4=rest

3x/4 × 1/6 =x/8=cheltuiala 2

3x/4-x/8=5x/8=rest

5x/8 ×1/3+120=5x/24+120=cheltuiala 3

x/4+x/8+5x/24+120+600=x

x/4+x/8+5x/24+720=x

6x+3x+5x+17280=24x

14x+17280=24x

10x=17280  

x=1728 lei  

2. x= distanta    x/1 X 7/20 = 7x/20 (rest)  2X7x/20+624=x  7x/ 10 +624=x    7x+6240=10 x    -3x=6240 (se imparte la -3)    x=2080