PLZ HELP ASAP SOLID GEOMETRY

Mathematics

1 answer:

user100 [1]3 years ago

3 0

Volume of the cylinder is given by:
V=πr²
Volume of cylinder A will be:
r=3, h=3
A=π×3²×3
A=27π

Volume of cylinder B will be:
r=2, h=4
B=π×2²×4
B=16π
Thus the ratio of cylinder A to cylinder B will be:
(Volume A)/(Volume B)
=(27π)/(16π)
simplifying, we get:
27/16

Answer: D

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Including a 6% sales tax, an inn charges $155.82 per night. Find the inn's nightly cost before tax is added.

Feliz [49]

we know the Inn is charging 155.82 and that's 100% plus 6%, namely 106% of an amout of say that is "x", being the 100%.

since we know that 155.82 is 106%, what is "x"?

$\begin{array}{ccll} amount&\%\\ \cline{1-2} 155.82&106\\ x&100 \end{array}\implies \cfrac{155.82}{x}=\cfrac{106}{100}\implies \cfrac{155.82}{x}=\cfrac{53}{50} \\\\\\ 7791=53x\implies \cfrac{7791}{53}=x\implies 147=x$