posted by .

A certain kind of bacteria doubles in quantity every hour. At midnight two nights ago. only two of these bacteria were in a jar. At midnight last night, the jar was full. At what time was the jar half full?

  • math -

    It was half full at 11 p.m. last night.

  • math -

    Could someone explain this answer.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. precal

    A petri dish contains only two bacteria. The bacteria divide every half hour. How many bacteria will exist after 3 hours?
  2. math

    The ratio of the number of mints in Jar A to that in Jar B was 8 : 5. After 1/4 of the mints in Jar A were sold, there were 120 mints in Jar A than Jar B. How many mints were there in Jar B?
  3. Algebra

    The number of bacteria in a stagment pond doubles every hour. A farmer sprays it every two hours and kils 3/4 of bacteria immediately. If there are 10,000 live bacteria left after the farmer sprays at noon, how many live bacteria are …
  4. Math

    In a lab experiment, the count of a bacteria doubles every hour. a)at 1pm, there was 23000 bacteria. How many bacteria will be present at midnight?
  5. math

    if you have a jar filled with candy and every time you take one candy out you put the wrapper back into the jar. the wrapper takes 10% of the volume of a piece of candy. How many times will you have to fill the jar before half the …
  6. algebra

    Which jar of peanut butter is the best buy?
  7. Math

    Bacteria can multiply at an alarming rate when each bacteria splits into two new cells, thus doubling. If we start with only bacteria which can double every hour, how many bacteria will we have by the end of the day?
  8. Math

    A jar of bacteria doubles every two minutes. If the jar is 1/8 full by noon, at what time will the jar be completely full?
  9. Algebra

    A jar of change has 28 coins which is worth $2.60. If the jar only has nickels and dimes, how many of each type are in the jar?
  10. science

    Bacterium called pathogen. The example of a beaker with a single bacterium in it. That divides and doubles itself. If you place the first bacterium into the beaker, how much time it takes to half full?

More Similar Questions