80
50
80
4000
50 x 4000 = 200000 50% x 4000 = 2000
To divide 4000 by 80, you can simplify the calculation by first reducing both numbers. Since 80 can be expressed as 8 multiplied by 10, you can divide 4000 by 8 to get 500, and then divide that result by 10, yielding 50. Alternatively, directly dividing 4000 by 80 gives you 50 as well. Thus, 4000 divided by 80 equals 50.
(pi*r2)/2 + 4000
4000
4000
400/4000 is 10% 100/4000 is 2.5% 50/4000 is 1.25%
80 x 50 = 4,000
50/4000 = 0.0125 = 1.25%
250