Essment e Numbers and Perimeter
Rewrite the following using the associative property of addition.
8 + (7 + n)
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The result of the problem is n+15.

Step-by-step explanation:

1. Rearrange the terms

8+(7+n)=

=8+(n+7)=

2. Eliminate redundant parentheses

8+(n+7)=

=8+n+7=

3. Add the numbers

8+n+7=

=15+n=

4. Rearrange terms

15+n=

=n+15=

n+15

option: d is correct

step-by-step explanation:

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5