Answer:
55
Step-by-step explanation:
if it cost 2,145 for the whole thing and 39 for each person 2,145 divide by 39= 55
Answer:
a) 7
b)1.2
Step-by-step explanation:
10.5÷1.5=7
1.56÷1.3=1.2
$20,000
Because 1,000 divided by 5% = 20,000
Answer
146
Step-by-step explanation:
Let r be the rate at which oil production is decreasing from the well. Then:
5000000 x r^6=2500000
r^6=.5
ln r^6=ln .5
6 ln r=-0.69314718055994530941723212145818
ln r=-0.11552453009332421823620535357636
r=e^-0.11552453009332421823620535357636=.891
Since the oil production is only 0.891 of the previous year, the annual rate of loss is 0.109, or 10.9%, growing annually
A.3000000=5000000x(.891)^t
.6=0.891^t
t=4.42 years
Oil is being pumped at .60 of original production
B.250000=5000000 x 0.891^t
.05=.89^t
t=25.96 years
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