Problema Solution
The state tax in new jersey is 0.06. If your total bill at the grocery storr included 1.32 in tax how much did the groceries cost?
Answer provided by our tutors
let 'x' represent the cost of the groceries, then '0.06x' represents the cost of the tax
1.32 = x + 0.06x
x = 1.32/1.06 = 1.24
the cost of the groceries was $1.24
let 'x' represent the cost of the groceries, then '0.06x' represents the cost of the tax
1.32 = x + 0.06x
x = 1.32/1.06 = 1.245
the cost of the groceries rounds up to $1.25
interesting number, though, because a bill of $1.24 would mean a tax of 0.0744, which rounds down to 0.07 and a final bill of 1.31
a bill of $1.25 would mean a tax of 0.075, which rounds up to 0.08 and a final bill of 1.33
...in reality, no such bill should exist, the total should either have been $1.31 or $1.33