Problema Solution
Quinn bought ten books at the book store. some of the books were $2 and the rest were $3. how many $2 books did Quinn buy if he spent $26?
Answer provided by our tutors
let
x = the number of $2 books
y = the number of $3 books
the total books bought is 10
x + y = 10
$26 spent on books
2x + 3y = 26
by solving the system of equations
x + y = 10
2x + 3y = 26
we find
x = 4 books
y = 6 books
Quinn bought 6 books by the price of $2 each.