Problema Solution
The Book Nook makes four times as much revenue on paperback books as on hardcover books. If last month's sales totaled $124,300, how much of that money was made on paperbacks?
Answer provided by our tutors
let
x = the money made on paperback books
y = the money made on hardcover books
The Book Nook makes four times as much revenue on paperback books as on hardcover books
x = 4y
last month's sales totaled $124,300
x + y = 124300
by solving the system of equations
x = 4y
x + y = 124300
we find
x = $99,440
y = $24,860
$99,440 was made on paperbacks.