5x-23=87
add 23 to both sides
5x=110
divide both sides by 5
x=22
To check your answer...
5(22)-23=87
110-23=87
87=87
40 goes into 32 0 times 40 goes into 321 8 times 40 times 8 equls 320 so 8r1
Find the height of it with pythagoras
Root(100-36)=8
Volume = 1/3 pi r^2 h
1/3(36pi x 8)
=96pi
about 301.59ft^3
In order to do this problem:
Divide
18/(2/3)=
27
The answer is 27 miles
