SOLUTION: A store is offering a discount of 25% on a CD. There is a sales tax of 6%. Using a composition of functions represent the situation where the discount is taken first and then th

Algebra ->  Equations -> SOLUTION: A store is offering a discount of 25% on a CD. There is a sales tax of 6%. Using a composition of functions represent the situation where the discount is taken first and then th      Log On


   

Question 993271: A store is offering a discount of 25% on a CD. There is a sales tax of 6%. Using a composition of functions represent the situation where the discount is taken first and then the sale tax is applied after.


Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
CD=original price
.
A 25% discount means you pay 75% of the original price or 0.75(CD)
.
^% tax means you pay 100% of the taxable amount +6% or (1.06(0.75(CD)))
.
Total cost=(1.06(0.75(CD)))=0.795(CD)