Answer:
When the price of the stereo is more than $80, then it will be cheaper to buy the stereo online.
Step-by-step explanation:
Lets us assume that the price of the stereo is x.
If Jay buys online he gets a 15% discount, but has to pay a $12 shipping fee.
[tex]\frac{15}{100} =\frac{12}{x}[/tex]
=> [tex]15x=1200[/tex]
So, x = 80
And 15% of 80 is :
[tex]0.15\times80=12[/tex]dollars
Jay saves $12 but he has to spend $12 in shipping.
Up to $80, it does matter whether Jay buys the stereo online or at the store.
But when the price of the stereo is more than $80, then it will be cheaper to buy the stereo online.
