Question

A sculpture is made of solid brass in the shape of a cone. The sculpture is 90 inches tall, and its base has a diameter of 12 inches. If brass costs $0.55 per cubic inch, how much did the brass for the sculpture cost?

use 3.14 for pi, and do not round your answer.

Answer 1

Answer:pp

Explanation:

pp

Answer 2

Im Not completely sure

Explanation:

90

12

=

0.55

i

Define the proportion formula:

If 2 proportions are equal to each other, then we can cross multiply to get:

Numerator 1

Denominator 1

=

Numerator 2

Denominator 2

Numerator 1 * Denominator 2 = Denominator 1 * Numerator 2

Solving for Denominator 2 we get:

Denominator 2 = Denominator 1 * Numerator 2

Numerator 1

Evaluating and simplfying using your input values we get:

i = 12 * 0.55

90

i = 6.6

90

i = 0.073333333333333