Răspuns :
Răspuns:
Prima zi a cheltuit 159 de lei
A doua zi a cheltuit 261 de lei
x=suma totala
x=[tex]\frac{2}{9}*x+\frac{12}{25} *x+60[/tex]
x=[tex]\frac{2x}{9} +\frac{12*x}{25}[/tex]+60
x=[tex]\frac{2*x*25}{9*25}[/tex]+[tex]\frac{12*x*9}{25*9}[/tex]+60
x=[tex]\frac{50*x}{225} +\frac{108*x}{225}[/tex]+60
x=[tex]\frac{158*x}{225}[/tex]+60
x-[tex]\frac{158*x}{225}[/tex]=60
[tex]\frac{x}{1}[/tex]-[tex]\frac{158*x}{225}[/tex]=60
[tex]\frac{225x}{225}[/tex]-[tex]\frac{158*x}{225}[/tex]=60
[tex]\frac{225x-158x}{225}[/tex]=60
[tex]\frac{67x}{225}[/tex]=60
2.68x=60
x=60/2.68
x=22.38RON