Problema Solution
a diamond ring sold for $1929.60 including tax. if the tax where the diamond was purchased is 7.2%, find the price of the ring before the tax was added
Answer provided by our tutors
let 'x' represent the price before tax, then 'x + 0.072x' represents the price after tax
1929.6 = x + 0.072x
solving for 'x' we have x=1800
the price of the ring before tax was $1,800