to evaluate c, just plug in x(t) wherever there's an x:
c(x(t)) = 60x(t)+750
= 60(50t)+750
= 3000t+750
Now just plug in t=5 to get c(x(5)).
Can someone please help me do the follow problem...
...The cost (in dollars) of producing x sneakers in a factory is given by c(x)=60x+750. The number of sneakers produced in (t) hours is given by x(t)=50t. Fund c(x(t)). Evaluate c(x(5)) and explain what this number represents.
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