Question

A university bookstore recently sold a wirebound graph-paper notebook for $2.64, and a college-ruled notebook for $3.61. At the start of spring semester, a combination of 50 of these notebooks were sold for a total of $168.86. How many of each type were sold?

Answer 1

\(\Large \color{MidnightBlue}{\Rightarrow 2.64x + 3.61x = 168.86 }\)
\(\Large \color{MidnightBlue}{\Rightarrow x + y = 50 }\)
Solve the system.

Answer 2

I meant 3.61y actually

Answer 3

Thanks!