Question

anca a cumparat 2 savarine si cinci eclere si a platit 40 de lei iar maria cu 39 de lei a cumparat 4 savarine si 3 eclere
o savarina costa ..........lei
un ecler costa......lei
repede va rog

Answer 1

Răspuns:

2savarine.....5eclere.........40lei/×-2

4savarine.....3eclere..... . 39 lei

-4savarine....-10eclere........-80 lei

4savarine........3 edere........39 lei(+)

/ -7eclere......-41 lei

1ecler=41÷7=5,85

2savarine+5×5,85=40

2savarine +29,25=40

1savarina= (40-29,25)÷2=10,75÷2=5,375