Answer: There are 19 classes
Step-by-step explanation:
divide the total amount amount of students by the amount of students in each class
Answer: 7
Step-by-step explanation: I had this question before
10% of 46.80 =4.68
46.80 + 4.68 = 51.48
Hope this helps :D
Answer: 7 years
Step-by-step explanation:
= In2 / ∧
since the half life is given , we have :
22 = In 2/ ∧
∧ = In2/22
∧ = 0.032
Recall the formula for half life:
=
Therefore:
0.80 =
Take the In of both sides
In 0.80 = - 0.032t
t = In 0.80 / - 0.032
t = 7 years