posted by Billy on .
Jim paid $ 5.55 for 1 notepad and 7 pencils. Anne paid $ 12.28 for 3 notepads and 2 pencils. How much does each notepad cost?
Show all work.
n + 7p = 5.55
3n + 2p = 12.28
Multiply first equation by 3, then subtract one equation from the other.
3n + 21p = 16.65
19p = 4.37
You should be able to take it from here.