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Answer:
18 cheetos bags, 12 takis bags
Step-by-step explanation:
<u>Assigning:</u>
Let x = number of cheetos bag(s)
Let y = number of takis bag(s)
<u>System of Equations:</u>
x + y = 30
15x + 40y = 750
<u>Solving:</u>
Isolate y in first equation : y = 30 - x
Substitute into second equation:
15x + 40(30 - x) = 750,
15x + 1200 - 40x = 750,
-25x = - 450,
x = 18 cheetos bags
y = 30 - 18 = 12 takis bags