a. time elapsed= 8 hours
number= 180(1.23)^8=
b. worth= 226,000(1-.03)^5=
Are my answers correct?
a. The number of bacteria present in a colony is 180 at 12 noon. The bacteria grows at a rate of 23% per hour.
How many will be present at 8pm?
Answer: ~943 number of Bacteria by 8pm
b. A house purchased for $226,000 has lost 3% of its value each year for the past 5 years. What is the house worth now?
answer: FV = $194,073.89
what the house will be worth in 5 years.
3 answers
a. Growth factor = 100% + 23% = 123% = 1.23.
Bacteria = 180 *1.23^8 = 943.
b. Value = 226,000 - 0.03*226,000*5 = $192,100.
Bacteria = 180 *1.23^8 = 943.
b. Value = 226,000 - 0.03*226,000*5 = $192,100.
Correction: disregard my response to part b; I agree with bob' s answer.
1 answer