8/17/2019 Kunci Jawaban Dan Pedoman Penyekoran

1/3

KUNCI JAWABAN DAN PEDOMAN PENYEKORAN

TUGAS INDIVIDU

No. Alternatif Penyelesaian Skor

1 Sn = ½ n (a + Un)

S14 =14

2   (a + U14)

S14 = 7 (a + U14)S14 = 7 ( a + a + 13b)S14 = 7 (2a + 13b)

U3 + U6 + U + U12 = 72

a + 2b + a + !b + a + "b + a +11b = 72

4a + 26b = 722a +13b = 36

S14 = 7 (2a + 13b)  = 7 # 36  = 2!2 (A)

  1$

1$

!

S%b &otal Skor 2!

2  b = 2

S2$ = ½ n (a + Un)

S2$ =20

2   . (a + U2$)

S2$ = 1$ (a + a + 1b)S2$ = 1$ (2a + 3")24$ = 2$a + 3"$

2$a = '14$ = a = '7

S7 =7

2  (a+ U7 )

 =7

2 ( a + a + 6b )

  =7

2 2('7) + 6.2*

=7

2  ('14 + 12)

=7

2  ('2)

1$

1!

8/17/2019 Kunci Jawaban Dan Pedoman Penyekoran

2/3

S7 = '7

S%b &otal Skor 2!

3. U2 = !

a + b = !

a = ! b

U! = 14

a + 4b = 14

! b + 4b = 1

3b =

S2$ =20

2   . (a + U2$)

S2$ = 1$ (a + a + 1b)

  = 1$ ( 2.2 + 1.3)

  = 1$ . 61

  = 61$ (,)

!

!

1!

S%b &otal Skor 2!

!. U3 = 24

a + 2b = 24

a = 24 2b

U6 = 36

a + !b = 36

24 2b + !b = 36

3b = 12

 b = 4 = a = 24 2(4) = 16

S1! =15

2   . (a + U1!)

S1! =15

2  (a + a + 14b)

S1! =15

2  (2 a + 14b)

S1! =15

2  (2.16 + 14.4)

1!

1$

8/17/2019 Kunci Jawaban Dan Pedoman Penyekoran

3/3

S1! =15

2  (32 + !6)

S1! =15

2  ("") = 66$ (-)

S%b &otal Skor 2!

Total Skor 100