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Studentka2010 [4]
3 years ago
13

In a Petri dish there are currently 1,235 bacteria. The growth rate of bacteria is 3.25% How many bacteria will be there in the

dish after 5 hours
Mathematics
2 answers:
maxonik [38]3 years ago
6 0

Answer:

....

Step-by-step explanation:

AveGali [126]3 years ago
5 0

Answer:

1,436

Step-by-step explanation:

First multiply the growth rate by the number of hours.

3.25 x 5 = 16.25

Now multiply 1,235 by 100. = 123,500

And also multiply 1235 by the remainder percentage not being used(83.75)= 103,060.75

Now subtract 123,500 - 103,060.75 = 20,439.25

Divide this number by 100 = 204.3925 which is what 16.25% of 1,235 is.

1,235 + 204 = about 1,439 but since i rounded up a few times the answer is actually 1,435.6875 rounded up to 1,436

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Triss [41]

Answer:

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6 0
3 years ago
Find the Value of x<br><br> Please answer!!<br> No links!!
statuscvo [17]

Answer:

x = 15 inches

Step-by-step explanation:

a^{2} +b^{2} =c^{2} \\b^{2} = c^{2} - a^{2} \\b^{2}  = (25 inches)^{2} - (40 inces/2)^{2} = \sqrt{225}  = 15 inches

4 0
3 years ago
Plz help PLZ I BEG U
spin [16.1K]

Answer:

y = 2x + 0

Step-by-step explanation:

the formula is y = mx + b

m = slope = change in y/change in x = (84 - 76)/(42 - 38) = 2

Slope is 2.

b is the y-intercept, which is the coordinate when x = 0. To find b, substitute any coordinate from the table. Let's use (38, 76)

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6 0
3 years ago
Read 2 more answers
The sum of two numbers is 30. the first number is twice the second number. what are the numbers?
Fudgin [204]
Let the numbers be x and y.

by the first statement of the question, we get , x + y = 30.,,..(1)

by the second satement, we get , x = y+ y => x=2y... (2)

from equation (2), let us put the value of x in equation (1),
x + y = 30
=> 2y + y = 30
=> 3y = 30
=> y =30/3
=> y = 10

and x=2y => x = 2*10 = 20

in short, the numbers are 10 and 20

 
3 0
4 years ago
A doctor at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she
Anon25 [30]

Answer: 18

Step-by-step explanation:

Given : Margin of error = 3 ounces

Significance level : \alpha = 1-0.99=0.1

Critical value : z_{\alpha/2}=2.576

Standard deviation :\sigma=5\text{ ounces}

The formula to calculate the sample size is given by :-

n=(\dfrac{z_{\alpha/2}\ \sigma}{E})^2

\Rightarrow\ n=(\dfrac{2.576\times5}{3})^2\\\\\Rightarrow\ n=18.4327111111\approx18

Hence, the minimum sample size should be 18.

3 0
3 years ago
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