Which equation shows the correct grouping symbols? A. (5 + 70) : 5 * 2 = 30 B. 5 + 70 : 5 * 2 = 30 C. 5 + (70 : 5) * 2 = 30 D. 5 + 70 : (5 * 2) = 30 A. B. C. D.

equation A

Step-by-step explanation:

To know what equation is correct, we can calculate the left part of each one, and checking if the value matches the right part (which is always 30)

(Remember: to calculate equations, we first solve operations inside parenthesis, then divisions and multiplications, and for last sums and subtractions)

So, in option A, we have in the left part:

(5 + 70) : 5 * 2 - > 75 : 5 * 2 - > 15 * 2 - > 30

This option is correct, as the left part matches the right part.

Checking the other options, we have for option B:

5 + 70 : 5 * 2 - > 5 + 14 * 2 - > 5 + 28 - > 33

It does not match the left part. For option C:

5 + (70 : 5) * 2 - > 5 + 14 * 2 - > 5 + 28 - > 33

It does not match the left part. For option D:

5 + 70 : (5 * 2) - > 5 + 70 : 10 - > 5 + 7 - > 12

It does not match the left part. So, the correct answer is equation A