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den301095 [7]
3 years ago
15

A certain type of bacteria doubles in population every 6 hours. There were approximately 100 bacteria at the beginning of the da

y.
How many bacteria will there be at the end of one day?
Mathematics
1 answer:
Zepler [3.9K]3 years ago
5 0

Answer:

1600 after 24 hours

Step-by-step explanation:

100+100 = 200 after 6 hours

200+200 = 400 after 12 hours

400+400 = 800 after 18 hours

800+800 = 1600 after 24 hours

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7. Marco is making beaded bracelets. Each
stiks02 [169]

One way to find the least common multiple of two numbers is to first list the prime factors of each number.

8 = 2 x 2 x 2

Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.

2: three occurrences

3: one occurrence

So, our LCM should be

2 x 2 x 2 x 3 = 24.

So, Marco can buy, at the very least, 24 beads of each color to have equal colors of beads.

4 0
3 years ago
All of the following expressions are equivalent except _____. 1.x - 7 2. 7 + (- x) 3. - x + 7 4. 7 - x
Elena L [17]

Answer:

x-7

Step-by-step explanation:

4 0
2 years ago
What is the answer for this one ??
Arisa [49]

Answer: D

Step-by-step explanation:

A. 3 + -7 < -4

    -4 < -4

        X

    this one isn’t a solution

B. 3 + -7 ≤ -4

   -4 ≤ -4

   this works, let’s try the other equation

   3(3) + 2(-7) < -5

    9 + -14 < -5

     -5 < -5

       X

     this one doesn’t work either, let’s go on to the next one

C. the first equation is the same as the first one in A, and that didn’t work, so we know that the whole thing doesn’t work and we don’t have to do any math

D. we know the first equation works because we did it in B

    let’s go on to the second equation

    3(3) + 2(-7) ≤ -5

     9 -14 ≤ -5

     -5 ≤ -5

      this works, so that means that both equations work and the whole thing works :)

5 0
3 years ago
Danny scored 10 points in the first round of a game. he then lost 20 points in the second round. in the final round he earned 40
Black_prince [1.1K]
Danny's score at the end of the game is 30 because:
We started our with 10 points. 
He loses 20 points, which brings him down to -10 points. 
In the final round he earned 40 points. 40 minus the negative ten points gives us an answer of 30 points.
6 0
3 years ago
Read 2 more answers
3. Multiply: 7(-12) <br><br> help
Gnoma [55]

Answer:

Your answer is -84 hope this helps

Step-by-step explanation:

brainlest?

6 0
2 years ago
Read 2 more answers
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