dupa doua cresteri de preturi de 12% respectiv 18% costul unui obiect a devenit 132.16 lei. sa se afle pretu
l initial....AJUTOOOIRRR VA DAU COROANA
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Răspuns:
10000lei
Explicație pas cu pas:
x-pret
y-pret
x+12/100x=y
100^y+18/100y=100^13216
100y+18y=1321600
y=1321600/118
y=11200
100^x+12/100x=100^11200
100x+12x=1120000
x=1120000/112
x=10000