433.3333
52
5200
5200 / 62 = 83.87097
1 century = 100 years → you know that 1 year = 52 weeks 1 century = 100 * 52 weeks 1 century = 5200 weeks 1 century = 5200 weeks x century = 13 weeks You make the cross-multiply, and you get: 5200x = 13 x = 13/5200 → you simplify by 13 x = 1/400 13 weeks represent a fraction of 1/400 of century.
433.3333
3.4667
15.0725
52
5200
x = 13% of x + 400 ie x/(x+400) = 13/100 100x = 13x + 5200 87x = 5200 x = 5200/87 = 59.77
As a product of its prime factors: 2*2*2*2*5*5*13 = 5200
5200 / 62 = 83.87097
1 century = 100 years → you know that 1 year = 52 weeks 1 century = 100 * 52 weeks 1 century = 5200 weeks 1 century = 5200 weeks x century = 13 weeks You make the cross-multiply, and you get: 5200x = 13 x = 13/5200 → you simplify by 13 x = 1/400 13 weeks represent a fraction of 1/400 of century.
40
4% of 5200 = 4% * 5200 = 0.04 * 5200 = 208
80% of 5200 = 80% * 5200 = 0.8 * 5200 = 4,160