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Elanso [62]
3 years ago
10

a culture of bacteria doubles ever hour. If the colony contained 25 bacteria at noon, how many bacteria will the culture contain

at 4:00pm?
Mathematics
2 answers:
Nastasia [14]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Mariulka [41]3 years ago
3 0
I’m pretty sure it’s 400 correct me if I’m wrong
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Compute the simplified numerical value of the expression: (4042 + 4040 + 4038 + … + 6 + 4 + 2) − (4041 + 4039 + 4037 + … + 5 + 3
Evgesh-ka [11]

Answer:

2021

Step-by-step explanation:

7 0
2 years ago
Write an equation and solve the unknown
KATRIN_1 [288]
6 - x = 2x

6 = 2x + x

6 = 3x
———-
3

x = 2

I believe take away means subtraction??
4 0
3 years ago
One pump can empty a pool in 4 days, whereas a second pump can empty the pool in 10 days. How long will it take the two pumps, w
gtnhenbr [62]

Answer:

20/7 days (just less than 3 days)

Step-by-step explanation:

Recall that (1 job) = (rate)(time), so time = (1 job) / (rate).

Set up and solve the following equation:

  1 job

------------------------------- = time required for 2 pumps working together

1 job         1 job

---------- + -------------

4 days      10 days

This comes out to:

              1 job

------------------------------------------- = time required

10 job-days      4 job-days

------------------ + -----------------

   40 days           40 days

or:

    1 job

-------------------- = (40/14) days, or 20/7 days (just less than 3 days)

14 job·days

-----------------

   40 days  

7 0
3 years ago
What is 2 plus 2? Hghhhgghbbhghnbgghghh
Mars2501 [29]

when two is added to two the result is 4 !!

2+2=4 !!!


3 0
3 years ago
Read 2 more answers
1200/180 = <br><br><br><br><br> (can someone please help me I'm desperate)
ASHA 777 [7]

Using a calculator, 1200/180 = 6.67 approximately

If you use long division, then you'll get what you see in the diagram below

The 6's go on forever after the decimal point, but if you round to two decimal places, then you'll get that approximate value of 6.67

---------------

If you want a remainder, then 1200/180 = 6 remainder 120

You can think of it like you having 1200 cookies and 180 friends. Each friend will get 6 whole cookies and there will be 120 left over as the remainder.

8 0
3 years ago
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