Answer:
94
Step-by-step explanation:
4 + 9e
4 + 9(10)
4 + 90
94
Https://apps.apple.com/us/app/jamboard/id1143591418
<span> half life i= 78 hours
amount after 78 hours is 395 kg:
395 = 790e^(k*78)
Dividing by 790 and taking natural log
ln (395/790) = (k*78)
-0.6931 = 78k
-0.00888 = k
lets calculate how much is left after 18 hours:
Amount(18)
= 790e^(-0.00888*18)
Amount = 673.301 kg
hope this helps</span>
Answer:
=77 and the reserve is to get the answers
