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TiliK225 [7]
3 years ago
6

Community coffee company wants a new flavor of cajun coffee. how many pounds of coffee worth $7 a pound should be added to 14 po

unds of coffee worth $4 a pound to get a mixture worth $5 a pound?
Mathematics
1 answer:
olga_2 [115]3 years ago
8 0
14x4=56
5x14=70
70-56=14
14/7=2
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What is the volume of cylinder?

A cylinder can be seen as a collection of multiple congruent disks, stacked one above the other. In order to calculate the space occupied by a cylinder, we calculate the space occupied by each disk and then add them up.

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According to the given question:

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Taking derivatives:

A´(x)  =  4πx  - 800/x²

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( πx³  -  200 )/ x²  = 0      

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x = 4 cm

and h = 400/πx²    ⇒  h = 78.6 cm

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