Find the slope of the line that passes through the pair of points. (if an answer is undefined, enter undefined.) (−a + 2, b − 3)
1 answer:
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A=future amount
P=present amount
r=rate in decimal
t=time in years
so
when will A=double of original?
or when will A=2P
r=3%=0.03
t=t
divide both sides by P
take ln of both sides
ln(2)=0.03t
divide both sides by 0.03
(ln(2))/0.03=t
use calculator
23.1049=t
so a little over 23 years, about 23 years and 38.2 days