Alex buys 5 calendars to give as gifts. Each calendar had the same price. When the cashier rings up Alex's calendars, the total cost before tax is $58.75.

a.) Write and solve an equation to find the cost of each calendar.
b.) The total cost of Alex's calendars after tax is $63.45. Find the percent sales tax. Show your work and explain in words how you found your answer.

Question

Alex buys 5 calendars to give as gifts. Each calendar had the same price. When the cashier rings up Alex's calendars, the total cost before tax is $58.75. 

a.) Write and solve an equation to find the cost of each calendar.
b.) The total cost of Alex's calendars after tax is $63.45. Find the percent sales tax. Show your work and explain in words how you found your answer.

snowsurf · Answer

Let x be the price of a calendar. Since you know that all the calendar all have the same priced you can say 5x= 58.75

That will give you the price for one calendar. 

For finding the tax. Well you know the total before and after tax. Let T be the total including tax and let P be he price before tax. $$Tax = \frac{ T-P }{ P }*100$$