All categories

2 years ago

a scientist has 800 bacteria. with the use of antibiotics half of them die every 2 hours. how may are there after 16 hours

Mathematics

2 answers:

Shalnov [3]2 years ago

8 0

This is what i got in the caculator 6400 if not im so so sory

denis23 [38]2 years ago

5 0

After 16 hours , 3200 bacteria

because in 2 hours kills 400 right so

in 16 hours 3200 will be killed

You might be interested in

To which rational number subset(s) do the following numbers belong?

Vedmedyk [2.9K]

None of the numbers are fractions or decimals.

The answer would be

D. natural numbers, whole numbers, and integers

4 0

3 years ago

Read 2 more answers

What is 3157 with the 1 being underlined rounded to the nearest 10 or hundred

RUDIKE [14]

Answer:100

Step-by-step explanation:

8 0

2 years ago

is picking out some movies to rent, and he has narrowed down his selections to 5 documentaries, 7 comedies, 4 mysteries, and 5 h

pogonyaev

Answer: 91

Step-by-step explanation:

Given : The number of documentaries = 5

The number of comedies = 7

The number of mysteries = 4

The number of horror films =5

The total number of movies other than comedy = 14

Now, the number of possible combinations of 9 movies can he rent if he wants all 7 comedies is given by :-

$^7C_7\times^{14}C_2\\\\\dfrac{7!}{7!(7-7)!}\times\dfrac{14!}{2!(14-2)!}\\\\=(1)\times\dfrac{14\times13}{2}\\\\=91$

Therefore, the number of possible combinations of 9 movies can he rent if he wants all 7 comedies is 91 .

5 0

3 years ago

A bake

dimulka [17.4K]

Answer:

15 and a half days

Step-by-step explanation:

Since they earn $12's each day you would do $186 divided by $12 which would be 15.5 so it would take them 15 and a half days to raise $186.

8 0

2 years ago

How do you solve k/2+9=30

Mrrafil [7]

If you would like to solve the equation k / 2 + 9 = 30, you can calculate this using the following steps:

k / 2 + 9 = 30
k / 2 = 30 - 9
k / 2 = 21 /*2
k = 21 * 2
k = 42

The result is 42.

4 0

3 years ago

Read 2 more answers