In 3 hours half of 700 would be 700/2=350
in 3 more hours, so 6 total, the half life would be 350/2 = 175
in 3 more hours, 9 total, the half life would be 175/2 = 87.5
in 3 more hours, 12 total, the live life would be 87.5 / 2 = 43.75
so it would be 12 hours to have less than 50 mg
Answer:
It is 150.
Step-by-step explanation:
This clarifies it https://artofproblemsolving.com/wiki/index.php/2020_AMC_8_Problems/Problem_23
Divide 110 by 50 to get your answer, which would be 2.2. It would take 2.2 hours to get to your brother's house.
Answer:
Step-by-step explanation:
Divide each side by 2:
Answer:
its n+20-55-35
Step-by-step explanation: