Respuesta :

Answer: 30 is 53

31 is 28

Step-by-step explanation:sorry but I forgot how to do 29

Answer

For number 29 the answer is 9.

30 is 53.

31. is 28.

Step-by-step 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.