SOLUTION: The surface area of a solid clay hemisphere is 10cm^2.
A larger solid clay hemisphere has a surface area of
40cm^2. If the larger hemisphere weighs 2 pounds,
how many pounds doe
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Surface-area
-> SOLUTION: The surface area of a solid clay hemisphere is 10cm^2.
A larger solid clay hemisphere has a surface area of
40cm^2. If the larger hemisphere weighs 2 pounds,
how many pounds doe
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Question 1177846: The surface area of a solid clay hemisphere is 10cm^2.
A larger solid clay hemisphere has a surface area of
40cm^2. If the larger hemisphere weighs 2 pounds,
how many pounds does the smaller one weigh? Found 2 solutions by MathLover1, ikleyn:Answer by MathLover1(20850) (Show Source):
The solution and the answer in the post by @MathLover1 are both ABSOLUTELY WRONG.
I came to bring a correct solution.
The ratio of the surface areas of the two solid hemispheres is 4, according to the condition.
It means that the the ratio of their linear dimensions is 2 (larger to smaller).
Hence, the ratio of their volumes is 8.
Since the material they are made is the same, the ratio of the masses (weights) is 8.
ANSWER. The smaller hemisphere weight is of a pound.
Solved (correctly).
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For your safety, ignore the post by @MathLover1.
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Looking into her activity in last several days, I start thinking that
@MathLover1 presents a real danger for any visitor to this forum, because she provides wrong solutions even to simplest Math problems.
