6x-4(3x-5)=2 solve for x.
1 answer:
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Answer:
1. Fixed cost is $800
2.Cost of 25 bags is $1025
3. (170,2300)
Step-by-step explanation:
Given
Solving (a): Fixed cost
From the question, fixed cost is when x = 0;
Substitute 0 for x in
<em>Hence, the fixed cost is $800</em>
Solving (b): Cost of making 25 items
Here; x = 25
Substitute 25 for x in
<em>Hence, the cost of 25 bags is $1025</em>
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Solving (c): Domain and Range where Maximum cost = $2300
Here; c(x) = 2500
Substitute 25 for c(x) in
Subtract 800 from both sides
Divide both sides by 10
The domain and range of a function is in form of (x,c(x))
<em>Hence, the domain and range is (170,2300)</em>