How to write and do equations

[Gwen Crane]

Ravi brought 3 idential shirts and paid a sales tax of $2.84. The total cost was $50.18 . What was the cost of each shirt?

 

[masters]

Ravi brought 3 idential shirts and paid a sales tax of $2.84. The total cost was $50.18 . What was the cost of each shirt?

Hi Gwen,

Well, what do YOU think? You know the sales tax is added on last, rightR So why don't you subtract that amount from the total and then figure out what each shirt costs. Try it.