Question

ion avea 52 lei .in fiecare zi el cheltuia cate 3 lei ....
1)Formula functiei care indica suma ramasa .in functie de numarul de zile este
a)F(x)=3x+52
b)F(x)=52+X
C)f(x)=3X-52
D)F(x)=52-3x
2)Cati bani i-au ramas lui Ion dupa o saptamina

Answer 1

1) D)
2) 52-3x7=52-21=31

Answer 2

corect D) 52-3x

dupa o spatamana i-au ramas
52-3*7=52-21=31 lei