Answer
For number 29 the answer is 9.
30 is 53.
31. is 28.
Explanation:
29. 2 : 3
6 : x
So, 3 times 6 equeals to 18.
18 divided by 2 is 9, so x equals to 9.
30. 3 (1 2 - 5) + 8 × 4
12-5 =7
So now the question turns to:
3 (7）+ 8 × 4
now you are going to do mulitiplication from left to right.
so 3 times 7 equals to 21.
Your question is now :
21 +8 × 4
4 times 8 equals to 32.
21 +32= 53.
3 · 2³- 12 ÷ 4 + 7
According to BEDMAS.
You are starting with brackets, but since there is no brackets in this question, you can start with the exponet first.
2³= 2 ×2× 2= 8
The new question: 3 · 8 - 12 ÷ 4 + 7
Next is multiplication or dividtion from left to right.
3 times 8 equals to 24.
24 - 12 ÷ 4 + 7
12 divided by 4 is 3.
24-3 +7
21 +7
28.
Final answer is 28.