A certain type of bacteria doubles every 8 hours. A culture begins with 30 000. Without use of given equation, use the help of your ability to set up a pattern to determine how many bacteria are there after a) 8 hours b) 16 hours c)d days

Answers

Answer 1

Answer: Not sure what you mean by "without use of given equation".
At time 0hrs, there is 30 000.
Since it doubles every 8hrs, at time 8hrs there is 60 000 or 30 000 x 2
In another 8hrs, it will double again, so at time 16hrs, it will be 120 000 or 30 000 x 2 x 2
In another 8hrs, double again, so at time 24hrs, it will be 240 000 or 30 000 x 2 x 2 x 2
This is also 30 000 x 8 as 2x2x2=8. I'll come back to this later.

You add an extra x 2 for each 8 hrs. By the end of the 2nd day, it would be
30 000 x2 x2 x2 x2 x2 x2
This is also
30 000 x8 x8
Every day we add an extra x8
We use powers to specify this.
30 000 x 8^d
So after 4 days
30 000 x 8^4 = 30 000 x8 x8 x8 x8
Note that this is NOT the same as 30 000 x 8 x 4

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Brainliest for the correct answer and 20 points!!!

Answers

Answer:

(0,-4) and (6,0)

Step-by-step explanation:

Hint use desmos's graphing calculator nextime

Hope this helps!! Have a great day!

the sum of two number is 20 and their difference is 4. Find the ratio of greater inequality of the number.

Answers

Hello,
If the numbers are a and b and (a>=b)
Are-you asking a/b ?
If yes,
a+b=20
a-b=4
==>2a=24
==>a=12 and b=20-12=8

a/b=12/8=3/2

Please help me. I don't want to get the answer wrong

Answers

Answer:

Step-by-step explanation:

Answer: No Solution.

Step-by-step explanation:

So remember that you first need to solve for the parenthesizes, as it is the thing you need to do first in the order of operations: PEMDAS (Parenthesis, Exponents, Multiply, Divide, Add, Subtract)

So, what you should do first is distribute the 3 into x - 1 as well as the 2 on the right side into 2x + 3.

7x-3(x-1) = 2(2x+3)

7x - 3x - 3 = 4x + 6

Then what you should do next is combine like terms on the left side, which is 7x & -3x.

So what you would get after combining like terms is:

4x - 3 = 4x + 6

Then what you should do next, is move the 4x from the right side to the left. In order to do that, you must subtract 4x by 4x on the right side, which would cancel it out.

And remember, what you do on one side, you do to the other.

So in the end, you should end up with this:

-3 = 6

Now, due to how there is no more x you are solving for, it would be no solution.

A technology company designs a phone that weighs about 0.068 125 pounds. What is the weight of the phone rounded to the nearest hundredth pound?

Answers

Final answer:
The weight of the phone, originally provided as 0.068250 pounds, is rounded up to the nearest hundredth pound due to the third digit after the decimal being above 5. Therefore, the rounded weight of the phone is 0.07 pounds. Hope this helps have a good day

Bill can hammer 20 nails in 6 minutes. Jeff can do the same job in only 5 minutes . How long will it take them to finish if Bill hammers the first 5 nails, then Jeff hammers for 3 minutes then Bill finishes the job?A. 4.6 minutes
B. 5.0 minutes
C. 5.4 minutes
D. 5.8 minutes
E. 6.0 minutes

Answers

Bill hammers 20 nails in 6 minutes.
==> It takes him 6/20 = 0.3 minutes to hammer one nail.
==> If the total job is 20 nails, then he does 1/6 of the job in 1 minute.

Jeff hammers 20 nails in 5 minutes.
==> It takes him 5/20 = 0.25 minutes to hammer one nail.
==> If the total job is 20 nails, then he does 1/5 of the job in 1 minute.

Notice that the question doesn't say what size job they're assigned.
I'll assume it's a 20-nail job.

First step: Bill hammers 5 nails.
At 0.3 minutes per nail, that takes Bill 5 x 0.3 = 1.5 minutes

Second step: Jeff hammers for 3 minutes.
At 0.25 minute per nail, he adds 3/0.25 = 12 nails to Bill's 5, for a total of 17 so far.

Third step: Bill finishes the job.
There are (20 - 17) = 3 nails left to go.
At 0.3 minutes per nail, this takes Bill 3 x 0.3 = 0.9 minutes.

First step . . . . . 1.5 minutes
Second step . . . 3 minutes
Third step . . . . . 0.9 minutes
Total . . . . . . . . .5.4minutes

4a. A create containing 24 bottles of fruit juice is made up of 10 bottles of oranges, 8 bottles of apple and 6 bottles of lemon. If one bottle is picked at random, what is the probability of getting a Apple juice

Answers

Answer:

1/6

Step-by-step explanation:

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Help pls! Will give brainliest!

Hi can some one please help me with question b please

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