Question

Last for today...

Klo foto nya burem.. di zoom aja.. itu misteri dari ulangan kelas 7 yg w jawab tapi salah :'v

Tolong di jawab...

Answer 1

1.a Jawaban:

17 + (-24) + 12 = -7 +12 = 5

1.b

(-25) + (-41) + 19 = -66 + 19 = 47

2.

Bahan bakar = 45 liter

Bahan bakar habis = 8,5 . (350/100)

= 8,5.3,5

= 29,75 liter.

Sisa = 45 - 29,75 = 15,25

3. 2/3 + 3 5/9 = 3 + (2/3 + 5/9) = 3+ (6/9 + 5/9) = 3 + 11/9 = 4 + 2/9

4.10/9 : 1 + 2/3 = 10/9 : 5/3 = 10/9 . 3/5 = 2/3

5. 1/2 .1+ 1/3 + 2/9 : 10/6

(perkalian dan pembagian kerja dahulu)

2/3 + 2/9 . 6/10

2/3 + 2/15

20/30 + 4/30 = 24/30 = 4/5