How do I solve it by substitution?y=-24x-6y=-20
2 answers:
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Inequality, because want to know when we'll make a profit.
Profit: Let's See When 280d equals 52000
So, after 190 days Julianne will make a profit
Profit: Let's See When 280d equals 52000
So, after 190 days Julianne will make a profit
(1) let "r" denote number of rabbits, "c" number of chickens
Set up the equations:
Answer: There are 575 rabbits and 425 chickens
(2) m - number of Mike's stamps, a - number of Andrew's stamps.
Set up equations:
Answer: Mike has 48 stamps. Andrew has 12 stamps.