SOLUTION: A metal cylindrical-shaped can that is open on the top can be re-purposed as a vase. The surface of the can will be painted at a cost of $0.03 per square inch. The diameter of th

Algebra ->  Surface-area -> SOLUTION: A metal cylindrical-shaped can that is open on the top can be re-purposed as a vase. The surface of the can will be painted at a cost of $0.03 per square inch. The diameter of th      Log On


   

Question 1205829: A metal cylindrical-shaped can that is open on the top can be re-purposed
as a vase. The surface of the can will be painted at a cost of $0.03 per
square inch. The diameter of the base is 6 inches (in.) and the height of
the cylinder is 9 inches (in.) as shown.
What is the cost of painting 10 metal cans? The surface area formula of
the cylinder with an open top is π r 2π rh 2 + , where r is the radius of the
base and h is the height. Use π = 3.14.
Ⓐ $197.82
Ⓑ $135.65
Ⓒ $67.82
Ⓓ $59.35
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.

Write the formula in a right way; substitute the given numbers into the formula correctly and get the answer.

This "problem" is a lowest level of primitivism.