Mathematics, 06.05.2020 20:36 kenna162

52 Points
1. An advertising company charges $40 per half-page advertisement and $75 per full-page advertisement. Michael has a budget of $800 to purchase 13 advertisements.
(b) How many half-page advertisements does Michael purchase?
Show your work.
(c) How many full-page advertisements does Michael purchase?
Show your work.

I have the equations : x+y=13 and 45x+75y=800 i just don't know how to find how many ads he buys.

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