Question
steel is $50 per cubic foot. What is cost of cone with radius 7.5 inches and 25 inches height?
Answers
MathMate
Work out all dimensions in feet.
r=7.5 inches = 7.5/12=0.625'
h=25 inches = (25/12)'
Volume = (1/3) π r² h
and
from the price of $50/ft², we get
Cost=volume*price
=(1/3) π r² h * 50
Round the answer to two decimal places (to the cent).
I'll leave it to you to work with the buttons of your calculator.
r=7.5 inches = 7.5/12=0.625'
h=25 inches = (25/12)'
Volume = (1/3) π r² h
and
from the price of $50/ft², we get
Cost=volume*price
=(1/3) π r² h * 50
Round the answer to two decimal places (to the cent).
I'll leave it to you to work with the buttons of your calculator.
Sam
Thank you, it works.
MathMate
You're welcome!