We want to know when we brought it back in to the room. at that time
the temperature difference is 80 - 42 = 38 so we have to solve
<span>
38=9<span>e<span>^−.3344t</span></span></span> for t
this time we get
<span><span>38 / 9</span>=<span>e^<span>−.3344t</span></span></span>
<span>t=<span><span>ln(<span>38 / 9</span>)</span><span> / −.3344</span></span></span>
<span>t=−4.3</span>
so 4.3 minutes before 2:10
Hello!
<h3><em><u>Answers</u></em></h3>
1. 
Simplest form: 
2. 
Simplest form: 
3. 
Simplest form: 
4. 
Simplest form: 
5. 
Simplest form:
6. 
Simplest form: 
<h3><em><u>Explanation:</u></em></h3>
Simply add the numerators of the like fractions together. The denominators remain the same.
23/10 = 2 and 3/10
I hope this helped
Do you have a picture for this problem? There are multiple different ways to solve this problem but I'll need a picture to help you.
