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Question 154877: An aluminum plate is made according to the following dimensions. The outer radius is 10 inches and the inner radius is 3 inches.
Use p = 3.14 as an approximate value. (a) How many square inches in area is the aluminum plate? (b) If the cost to construct the plate is $7.50 per square inch, what is the construction cost?
Can you please explain this to me with an algebraic example? Thank you.: An aluminum plate is made according to the following dimensions. The outer radius is 10 inches and the inner radius is 3 inches.
Use p = 3.14 as an approximate value. (a) How many square inches in area is the aluminum plate? (b) If the cost to construct the plate is $7.50 per square inch, what is the construction cost?
Can you please explain this to me with an algebraic example? Thank you.
Answer by jojo14344(900)  (Show Source):
You can put this solution on YOUR website!a) get the  of the Outer Radius=  + Inner radius= 
Remember: 
So, 
 = 
b)  *
$2568.252 ---------------------> cost to make it
Thank you,
Jojo
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