Question

What is the weight of a bowling ball with a 5 in. radius if we know that one cubic inch weighs 1/100th of a pound?

Answer 1

Greetings!

To find the total area of the bowling ball, which we presume is spherical, the equation is:

$\frac{4}{3}$πr³

So we know that the radius is 5, so we can substitute that into the equation:

$\frac{4}{3}$ x π x 5³ = 523.599 or 524 to 1dp.

Seeing as this is 524 cubic inches, we can convert this into pounds by dividing this by 100, because one cubic inch weights $\frac{1}{100}$ as stated.

524 ÷ 100 = 5.24lb

So your answer would be B, 5.24lb.

Hope this helps!