Question 360624
d = days
i=ipod
20d= 500+i...........1
10d=200+i............2
..
d=(500+i)/20
plug value in 2
10(500+i)/20=200+i
10(500+i)=20(200+i)
5000+10i=2000+20i
10i=3000
/10
i=300
cost of ipod = $300
...
m.ananth@hotmail.ca