Hey You!
Tom:
22*7% = 1.54
His Cousin:
18*7% = 1.26
22 + 1.54 = 23.54
18 + 1.26 = 19.26
So, Tom pays $23.54 and His Cousin pays $19.26 and Tom payed more tax.
The equation for volume of a sphere is:
Volume = 4/3 * PI * r^3
r is the radius = 1 inch
Volume is given as 4 cubic inches per second increase.
Given: dv/dt = 4 cubic inches per second.
Need to find dr/dt
Formula for volume of a sphere is: V = 4/3 * π * r^3
so now we have:
4 in^3 = 4 * π *1^2
Divide both sides by 4 * π *1^2
4 in^3 / 4π = 1/π inch per second.
The answer is 1/π inch per second ( exact answer)
or as a decimal: 0.3183 ( round as needed).
8 X
----- = ------
20 40000
40000/20=2000
2000*8=16000
X=16000
Answer:
36894
Step-by-step explanation:
hope it helps
