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Mathematics 20 Online
OpenStudy (anonymous):

The lengths of three sides of a triangle are: n + 3, n + 6, and 3n – 6. Find the range of the possible lengths for n. (2 points)

OpenStudy (anonymous):

Hint: Sum of any wo sides of a triangle is greater than the third side

OpenStudy (anonymous):

i am really confused on what i am doing

OpenStudy (anonymous):

First assum n+6 is the largest side

OpenStudy (anonymous):

So, n+6 < n+3 + 3n-6

OpenStudy (anonymous):

no i did that i dont know what to do after

OpenStudy (anonymous):

n+6 < n+3 + 3n-6 15<3n n>5

OpenStudy (anonymous):

wait so is that the answer?

OpenStudy (anonymous):

3n-6>n+6 + n+3 n>15

OpenStudy (anonymous):

n+3 > n+6 +3n-6 n<1

OpenStudy (anonymous):

So, the answer is n<1 and n>5

OpenStudy (anonymous):

o so it has to be smaller than 1 and greater than 5?

OpenStudy (anonymous):

yes

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