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
Hours M W F = 4 hours x 3 = 13
Hours S = 8 hours
Total Hours per week = 21 hours
Total made per week = 21 x $10 = $210
Answer:
12 laps each miles
Step-by-step explanation:
96/8=12
Step-by-step explanation:
The mean is the average.
(8.3 + 6.8 + 9.4) / 3
≈ 8.2