SOLUTION: Dear tutors, My question is, A book store is having a sale. All hardback books are 20% off, and all paperbacks are 10% off. Suppose you buy four paperbacks that originally

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: Dear tutors, My question is, A book store is having a sale. All hardback books are 20% off, and all paperbacks are 10% off. Suppose you buy four paperbacks that originally      Log On


   

Question 109582: Dear tutors,
My question is,

A book store is having a sale. All hardback books are 20% off, and all paperbacks are 10% off. Suppose you buy four paperbacks that originally cost $9 each and two hardbacks that originally cost $20 each. What percent of the total cost have you saved? Round answer to the nearest percent.


Please help me with this thanks!
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
((total savings)/(total original cost))*100%

(4(10%)(9)+2(20%)(20))/(4*9+2*20) ... ((3.60+8)/(36+40))*100%