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Find all real numbers t such that \(\frac{2}{3} t - 1 < t + 7 \le -2t + 15$\) Give your answer as an interval.

 Jun 5, 2019
 #1
avatar+8852 
+3
 Jun 5, 2019
 #2
avatar+342 
+1

What is the symbol $ ? 

Why is 15$ and not 15.What is the difference? 

 

Thank you.

Dimitristhym  Jun 5, 2019
edited by Dimitristhym  Jun 5, 2019
 #3
avatar+8852 
+3

It is leftover from when the asker copy and pasted the question. Other sites use $'s to enclose latex, but this site does not. The dollar sign shouldn't be there.

hectictar  Jun 5, 2019
 #4
avatar+342 
+1

Aha ok thank you I was wandering if it was a mathematical symbol witch I didn't know.

Dimitristhym  Jun 5, 2019

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