Vivian is getting a pet snake. She is choosing between the ball python and the corn snake. the ball python is 4 1/2 ft long and
1 answer:
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For half lives
A=final amount
P=present amount
t=time in some units (this case it is days)
h=half life in days in th is case
so
given
we want 5% left
so A=5% of P or 5/100 of P or 1/20 of P or 0.05P
h=4.6
so
divide bth sides by P
take ln of both sides
divide both sides by
times both sides by 4.6
use your calculator
19.889t
so after about 20 days
A=final amount
P=present amount
t=time in some units (this case it is days)
h=half life in days in th is case
so
given
we want 5% left
so A=5% of P or 5/100 of P or 1/20 of P or 0.05P
h=4.6
so
divide bth sides by P
take ln of both sides
divide both sides by
times both sides by 4.6
use your calculator
19.889t
so after about 20 days