After 6 hours the amount of caffeine 40 mg. After another 6 hours the amount of caffeine is 20 mg. It takes 12 hours for the total amount of caffeine to drop down to 20 mg. the answer is 11 am -B. Hope this helps!
123 lb * (0.4536 kg/lb) * 300mg/(kg · day)
= (123 * 0.4536 * 300) mg/day
= 16737.84 mg/day
16737.84 mg/day * 1g/(1000mg)
= 16.73784 g/day
Answer:
2.30 years
Step-by-step explanation:
The number of fish tripled in the first year, making a total of 240 * 3 = 720 fishes.
(a) The formula for logistic equation is as the following

where P0 = 240 is the number of fishes initially, we can plug in P = 720 and t = 1 to calculate the constant k



b) Using the following formula

with P = 3000, P0 = 240, k = 1.1, we can calculate the number of years it takes to get to 3000 fishes




Answer:
Ella incorrectly combined the r coefficients. The correctly simplified expression is b Plus 3r.
Step-by-step explanation:
(3b+4r)+(-2b-r)
Open the bracket
=3b+4r-2b-r
Combine the like coefficient
=3b-2b+4r-r
=b+3r
Ella incorrectly combined the r coefficients. The correctly simplified expression is b Plus 3r.