Answer:
1.753 g
Step-by-step explanation:
Half life of Einsteinium = 20.5 days
Time elapsed = 31 days
Initial quantity of the substance = 5g
The formula to apply is;

Where
N(t)=quantity of a substance remaining
No =Initial quantity of the substance = 5g
t= time elapsed=31 days
t1/2 = half life of the substance= 20.5 days
N(t)=5 * {1/2} ^ {31/20.5}
N{t} = 5 * {0.5}^1.5
N{t} = 5*0.3506
N{t} =1.753 g
Answer:
A i think
Step-by-step explanation:
Answer:
5/3
Step-by-step explanation:
A ratio is just a fraction comparing two quantities.
Ex: For every 5 trees, there were 3 elephants
This, into a fraction, would take the first number and make it the numerator and the second number into a the denominator.
Just think of the colon as a slash or a divide sign
Vote Brainliest, Thx :)
472000 + 178000 = <span>650000
</span>
<span>650000 is your answer
</span>
hope this helps