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Zarrin [17]
3 years ago
5

Place parentheses around the expression from the previous problem so when simplified it is equal to 13.

Mathematics
2 answers:
ololo11 [35]3 years ago
6 0

Answer: 15 - (6 + 1) + 30 ÷ (3 × 2)

Step-by-step explanation:

The simplest way is just to [try check and revise]. Place parentheses on each two numbers and try.

However, there is a somewhat trick involved.

Normally, when a question asks for adding parentheses, the parentheses are normally placed on two numbers that don't usually operate together.

  • For example, in this question, [15 - 6 + 1]. Normally, is should be 15-6 which is 9. Then 9+1 is 10. Also, usually when you add parentheses on -6+1, it will change signs into -(6-1). But, in this question, when we add parentheses, signs don't change. So it is -(6+1).

Hope this helps!! :)

garik1379 [7]3 years ago
5 0

Answer:

15 - (6 + 1) + 30 ÷ (3 × 2)

Step-by-step explanation:

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Alright, lets get started.

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