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Andru [333]
3 years ago
7

A culture started with 1000 bacteria. After 6 hours it few to 1300 bacteria. Predict how many bacteria will be present after 10

hours.
Mathematics
2 answers:
dlinn [17]3 years ago
6 0

Answer:

1350

Step-by-step explanation:

If a culture started with 1000 bacteria and after 6 hours it few to 1300 bacteria, there would be 1350 present after 10 hours.

1000 to 1100 is an increase of 100 bacteria per 6 hours.

1100+250= 1350

PIT_PIT [208]3 years ago
3 0

Answer:

1500

Step-by-step explanation:if it grows 300 in 6 hours you can assume that  each hour would increase the pop by 50 so 10 hours times 50 it will become 1500.

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Step-by-step explanation:

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6 0
3 years ago
(08.05)theresa earned scores of 88 points, 84 points, 88 points, and 91 points on four tests. what is the lowest score she can g
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6 0
3 years ago
The side length of a square is represented by the expression 2x + 5. Which expression represents the difference between the area
musickatia [10]

Answer:

4x^2 + 22x + 15

Step-by-step explanation:

The side length of a square is represented by the expression 2x + 5.

The area of a square is given as:

A = a^2

where a = length of side of the square

The area of the square is therefore:

A = (2x + 5)^2\\\\A = (2x + 5)(2x + 5)\\\\A = 4x^2 + 20x + 25

The perimeter of a square is given as:

P = 4a

The perimeter of the square is therefore:

P = 4(2x + 5) \\\\P = 8x + 10

The difference between the area of the square and the perimeter of the square is:

4x^2 + 30x + 25 - (8x + 10)\\\\4x^2 + 30x + 25 - 8x - 10\\\\4x^2 + 30x - 8x + 25 -10\\\\4x^2 + 22x + 15

The expression that represents the difference between the area and the perimeter of the square is:

4x^2 + 22x + 15

7 0
3 years ago
If BE = 2x + 2, BD = 5x – 3, and AE = 4x – 6, what are the values of x and AC?
Keith_Richards [23]

Answer: x=7 and AC = 44 unuts.

Step-by-step explanation:

We know that the diagonals of a parallelogram bisect each other. (i)

Here in parallelogram ABCD , AC and Bd are diagonals intersecting at E.

BE = 2x + 2, BD = 5x – 3, and AE = 4x – 6

Using (i)

BE=\dfrac{BD}{2}\\\\2x+2=\dfrac{5x-3}{2}\\\\ 2(2x+2)=5x-3\\\\ 4x+4= 5x-3\\\\ 5x-4x=4+3\\\\ x= 7

Now , AE = 4(7)-6 = 28-6 = 22

AC =2 AE = 2 (22) =44 units.

Hence, x=7 and AC = 44 unuts.

3 0
3 years ago
Clark has 7 and 1 over 2 feet of wire.
tatiyna

Answer:

a) 7.5/3=2.5  

b)  about 3 pieces can be cut.

Step-by-step explanation:

8 0
3 years ago
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