A bookseller prices a particular book by raising its wholesale price 60% and then adding $0.75. What is the wholesale price of the book if it sells for $18.75?

Question

I need help solving this problem algebraically  

Answer 1

60% increase means 100%+60% = 160% = 1.60 is multiplied by the price

 

1.6*X + 0.75 = 18.75

 

1.6*X = 18

 

16 X = 180

 

   X = 180 / 16 = 90/8 = 45/4 = 11 and 1/4 = 11.25