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
Nostrana [21]
3 years ago
13

A cafeteria worker who fails to wash his hands thoroughly and fails to wear gloves inoculates a quiche with 4 E. coli when he us

es his finger to test whether it is done. By the time you purchase the quiche, there are 128 E. coli cells in it. How many generations did the cells go through?
Mathematics
1 answer:
marysya [2.9K]3 years ago
7 0

Answer:

5 generations

Step-by-step explanation:

Data provided in the question:

Number of bacteria at the beginning of a time interval , B = 4

Number of bacteria at the end of the time interval, b = 128

Now,

The relation between the bacteria at the beginning, bacteria at the end and the number of generations (n) is given as:

b = B × 2ⁿ

Therefore,

on substituting the respective values, we get

128 = 4 × 2ⁿ

or

2ⁿ = 32

or

2ⁿ = 2⁵

or

n = 5

hence,

5 generations

You might be interested in
I need help.................
Yanka [14]

Answer:

-33 and -21

Step-by-step explanation:

-36, <u>-33</u>, -30, -27, -24, <u>-21</u>, -18

-36

-36 + 3 = -33

-33 + 3 = -30

-30 + 3 = -27

-27 + 3 = -24

-24 + 3 = -21

-21 + 3 = -18

8 0
2 years ago
What is the value of x
ratelena [41]

Answer:

19

Step-by-step explanation:

6 0
3 years ago
What is the slope of the line that passes through the pairs of points (-6,8) (2'3)
Alecsey [184]
Im pretty sure the answer is D, because if i used the right formula,
\frac{y2 - y1}{x2 - x1}
you should get this in the formula
\frac{8 - 3}{2 - ( - 6)}
\frac{5}{8}
a 2 subtracting a negative 6 makes it a positive, meaning your just adding 6 plus2, to get 8
6 0
3 years ago
Humans blink their eyes about once every 5 seconds. How many times do humans blink their eyes in two hours
Leni [432]
The answer is 36,00
This is because 5x 60 gives you the amount in a minute
Then you take that answer and multiply it by another 60 to give you the number per hour
Then that number times 2 to give you the amount every two hours
5 0
2 years ago
7.25 cm plus 7.2 cm plus 8cm equals what
alisha [4.7K]
There correct answer to that question is 22.45
7 0
3 years ago
Read 2 more answers
Other questions:
  • True or F alse : 5x + 2y = 0 is the equation of a line whose slope is undefined.
    11·2 answers
  • Solve for x in the equation x - 4 = 7.<br>A. X = -3<br>B. x = 11<br>C. x = 28<br>D. x = 3​
    6·2 answers
  • 3) x2+ y2 - x + 3y - 42 = 0<br> X+y=4
    5·1 answer
  • I need help please?!!
    9·1 answer
  • Cuanto es la respuesta de -126=14k?
    13·2 answers
  • Rajan bought 5 copies of a book to give as gifts. The book was on sale for $5 off the
    12·1 answer
  • Whats the answer____________________
    8·2 answers
  • The quotient of w decreased by 5 and 6<br> write it as an expression
    9·1 answer
  • Help please struggiling
    9·1 answer
  • Put the following equation of a line into slope-intercept form, simplifying all fractions 2x + 6y = 36​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!