Question

Oblicz.
4i 2/3- 1/3:2+=
3i3/4:5/6-1/4x1i2/3=
1i2/5x3i4/7-2i1/8x2i6/17=
Rozwiąż równanie.
1/2xZ=27
2/3xS-6=24
Błagam!!

Answer 1

Zad 1.

4 i 2/3- 1/3 : 2 =

= 4 i 2/3 - 1/3 * 2/1=

= 4 i 2/3 - 2/3=

= 4




3 i 3/4 : 5/6 - 1/4 *1 i 2/3=

= 15/4 * 6/5 - 1/4 * 5/3 =

= 3/2 * 3/1 - 5/12=

= 9/2 - 5/12=

= 54/12 - 5/12=

= 49/12=

= 4 i 1/12




1 i 2/5 * 3 i 4/7 - 2 i 1/8 * 2 i 6/17=

= 7/5 * 25/7 - 17/8 * 30/17=

= 1/1 * 5/1 - 1/4 * 15/1 =

= 5/1 - 15/4 =

= 5 - 3 i 3/4 =

= 4 i 4/4 - 3 i 3/4 =

= 1 i 1/4




zad 2.

1/2 * Z=27

Z = 27 : 1/2

Z = 27 * 2/1

Z = 54


spr.

1/2 * Z = 27

1/2 * 54 = 27

1/1 * 27 = 27

27 = 27

L=P




2/3 * S - 6=24

2/3 * S = 24 + 6

2/3 * S = 30

S = 30 : 2/3

S = 30 * 3/2

S = 15 * 3/1

S = 45/1

S = 45


spr.
2/3 * S - 6 = 24

2/3 * 45 - 6= 24

2/1 * 15 - 6= 24

30/1 - 6 = 24

30 - 6= 24

24 = 24

L=P