1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dolphi86 [110]
3 years ago
6

The doubling period of a bacterial population is 15 minutes. At time t= 80 minutes, the bacterial population was 90000​

Mathematics
1 answer:
Papessa [141]3 years ago
6 0

Answer:

here i finished!

hope it helps yw!

Step-by-step explanation:

The doubling period of a bacterial population is 15 minutes.

At time t = 90 minutes, the bacterial population was 50000.

Round your answers to at least 1 decimal place.

:

We can use the formula:

A = Ao*2^(t/d); where:

A = amt after t time

Ao = initial amt (t=0)

t = time period in question

d = doubling time of substance

In our problem

d = 15 min

t = 90 min

A = 50000

What was the initial population at time t = 0

Ao * 2^(90/15) = 50000

Ao * 2^6 = 50000

We know 2^6 = 64

64(Ao) = 50000

Ao = 50000/64

Ao = 781.25 is the initial population

:

Find the size of the bacterial population after 4 hours

Change 4 hr to 240 min

A = 781.25 * 2^(240/15

A = 781.25 * 2^16

A= 781.25 * 65536

A = 51,199,218.75 after 4 hrs

You might be interested in
3х2+9х+6<br> Foil method of
IgorLugansk [536]

Answer:

3(4+3x)

Step-by-step explanation:

See Image below.

7 0
2 years ago
alex bakes $24$ apple, blueberry, and cherry pies. The ratio of apple to blueberry to cherry pies is $1:4:3$. How many cherry pi
Kitty [74]

Answer:

Alex baked 9 cherry pies

Step-by-step explanation:

apple : blueberry : cherry = 1:4:3

apple + blueberry + cherry = 24

1 part: 24 / ( 1+4+3) = 24 / 8 = 3

** Cherry has 3 parts: 3 x 3 = 9

check: apple = 3 x 1 = 3

blueberry: 3 x 4 = 12

12 + 3 + 9 = 24

6 0
3 years ago
Factor the following number and give the steps<br> 4a+12b-20
Reil [10]
Here, we can either factor:
1. The numbers
2. The variables
3. Both 1 and 2
In this instance, we factor 1 because the variables are different but the three numbers have a Greatest Common Factor.
4a+12b-20
4(a+3b-5)
8 0
2 years ago
Which of the following must be present for a check to be legitimate? I. The recipient’s bank II. The date III. A memo or note a.
katrin [286]
Its b .........................................
6 0
3 years ago
Read 2 more answers
2396473 rounded to the nearest ten thousand
ladessa [460]

Answer:

240,000

Step-by-step explanation:

yeet

3 0
3 years ago
Other questions:
  • What type of pay is modeled blow?
    5·1 answer
  • Mario was given some birthday
    9·1 answer
  • A company that makes​ hair-care products had 4,000 people try a new shampoo. Of the 4,000 ​people, 28 had a mild allergic reacti
    5·1 answer
  • What is the length of segment AB? A coordinate plane is shown. Point A is located at 6, 2, and point B is located at 0, 10. The
    6·2 answers
  • What is 5.75 in fraction form?
    15·1 answer
  • What is no-fault insurance?
    12·2 answers
  • A 15% tip on a restaurant bill is $3.60. How much is the bill?
    7·2 answers
  • Write 543 000 in standard form.
    6·2 answers
  • 49^x/4-5 = 343^x/3 what does x equal
    5·1 answer
  • 14 is 4 less than three times k
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!