a fruit fly population starts out with 10,000 fruit flies and is increasing in population by 15% each week. how many fruit flies will there be in 20 weeks

163,665

Step-by-step explanation:

To calculate the amount of fruit flies that will be there in 20 weeks, you can use the following formula:

FV= PV*(1+r)^n

FV= Future value

PV= Present value= 10,000

r= rate= 15%

n= number of periods= 20

FV=10,000*(1,15)^20

FV=163,665

According to this, the answer is that there will be 163,665 fruit flies in 20 weeks.

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.