SOLUTION: If a store prices each book at $x, (64 − 8𝑥) books will be sold. (i) The total amount of money earned from the sale of the book is $y. express y in terms of x

Algebra ->  Proportions -> SOLUTION: If a store prices each book at $x, (64 − 8𝑥) books will be sold. (i) The total amount of money earned from the sale of the book is $y. express y in terms of x      Log On


   

Question 1189352: If a store prices each book at $x, (64 − 8𝑥) books will be sold.
(i) The total amount of money earned from the sale of the book is $y. express y in
terms of x
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.

The total amount of money y, earned from the sale of (64-8x) books, equals

to the product of the number of books (64-8x), by the price of each book x


    y = (64-8x)*x,

or

    y = 64x - 8x^2,


which is the same as


    y = -8x^2 + 64x.

Solved and carefully/thoroughly explained.