posted by Nomad on .
5 books and 9 magazines cost $150.50 dollars altogether. 9 Books and 5 magazines cost $175.70. How much does 1 book and 1 magazine cost?
Please show work
Its something I need to have.
9b+5m=175.7 if you add them you have one equation.
sub. this back into one the original equations
Plug that into the other equation