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Alexxx [7]
3 years ago
8

A bacteria culture initially contains 2000 bacteria and doubles every half hour.

Mathematics
1 answer:
dsp733 years ago
5 0

<em>Answer:</em>

<em>Can be found below</em>

<em>Step-by-step explanation:</em>

<em>Part A:</em>

<em>So we know that the bacteria doubles every (30) minutes.</em>

<em>2000 times 2 equals 4000 (30 minutes)</em>

<em>4000 times 2 equals 8000 (1 hour)</em>

<em>Answer for Part A:</em>

<em>8000 bacteria</em>

<em>Part B:</em>

<em>Now we do this function 2000(2)^14 (30 minutes long)</em>

<em>Answer to Part B: </em>

<em>I believe the answer is 32,768,000 (Please correct me if I'm wrong) </em>

<em>Hope I could help!! Have a great day/night!</em>

<em>Any constructional messages are greatly appreciated!!</em>

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ABCD is a parallelogram. if side AB=6x-10, side BC=4x-5, and side CD =3x+5, find the value of x
serg [7]

Answer:

x=5

Step-by-step explanation:

If ABCD is a parallelogram, then AB = CD

AB=CD

6x-10 = 3x+5

Subtract 3x from each side

6x-3x -10 = 3x-3x+5

3x-10 = 5

Add 10 to each side

3x-10+10 = 5+10

3x = 15

Divide by 3 on each side

3x/3 =15/3

x=5


8 0
3 years ago
The ratio of students to teachers is 2:3 respectively.If there are 21 teachers, how many students are there?
yulyashka [42]

Answer:14


Step-by-step explanation:

2:3

14:21

in 14 their is 2 7's

in 21 their is 4 7's


6 0
3 years ago
A 747 Airplane is 762 inches tall. How tall is it in feet
Vsevolod [243]

Answer:

The answer is 63.5 feet :)

7 0
3 years ago
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For each question, each pair of triangles are similar but not drawn to scale. Calculate any lettered lengths.
Karolina [17]

Answer:

a. 20

b. 5

Step-by-step explanation:

The scale factor is 5 because 6×5=30

a. 4×5=20

b. 25÷5=5

8 0
2 years ago
Use Cramer's rule to find the solution to the following system of linear equations.
slavikrds [6]

Answer:

x = 53

y = 30

Step-by-step explanation:

Step(I):-

Given equations are

x -2y =-7 ...(I)

5x-9y =-5 ..(ii)

The matrix form  AX = B

                    \left[\begin{array}{ccc}1&-2\\ 5  & -9\\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}-7\\-5\\\end{array}\right]

The determinant

= \left|\begin{array}{ccc}1&-2\\5&-9\\\end{array}\right| = -9+10 =1

By using Cramer's Rule

Δ₁ =      \left[\begin{array}{ccc}-7&-2\\\\-5&-9\end{array}\right]



The determinant is     Δ₁ = -9 X -7 - (10 ) = 53

x = Δ₁ / Δ

x = 53

The determinant

Δ₂ =



Δ₂ = -5 +35

     

 

y = Δ₂/Δ =  30

     

5 0
3 years ago
Read 2 more answers
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