Odpowiedzi

2009-11-14T14:48:58+01:00

a₁
7 ----- 100%
2 ----- x% x= 2*100% : 7 ≈ 28.57%

a₂
7------100%
4------x % x=4*100 % : 7≈57.14%

a₃

5*100% : 7 ≈ 71.42%


1*100%:12 ≈ 8.(3)%

b₂

3*100%:12=25%

b₃

6*100%:12=50%

b₄

8*100% :12≈ 6.(6)%

c₁

1*100% :60≈ 1.(6)%

c₂

15*100 :60+25%

c₃

50*100%:60≈83.(3)

c₄
30*100%:3600=0.8(3) %

c⁵ 180s=3min.
3*100:60=5%
2009-11-14T14:51:59+01:00
A) Tydzien - 7 dni
7 dni ---100%
2 dni--- x%
x=28,6%

7dni --- 100%
4 dni --- x%
x=57,1%

7dni --- 100%
5dni --- x%
x=71,4%

7 ---100%
1- x%
x= 14,3%

Odp: 2 DNI TO 28,6% TYGODNIA, 4 DNI TO 57,1%, 5 DNI TO 71,4% NATOMIAST 24h TO 14,3%

b) rok -365 dni - 12 msc
12- 100%
1- x%
x=8,33%

12 --- 100%
3 --- x%
x= 25%

12 --- 100%
6--- x%
x=50

12 ---100%
8 --- x%
x= 66,6%

Odp: 1 msc to 8,33% roku, kwartał to 25%, pól roku to 50%, natomiast 8 msc to 66,6% roku


c) 1h = 60 min= 3600 sek

60 min --- 100%
1min --- x%
x= 1,665

60 --- 100%
15--- x%
x= 25%

60 -- 100%
50 --- x%
x= 83,3%

3600 --- 100%
30 --- x%
x=0,83%

3600 --- 100%
180 --- x%
x=5%

Odp: minuta to 1,655 % godziny, kwadrans to 25%, 50 min to 83,3%, 30 sekund to 0,83% natomiast 180 sek to 5% godziny