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svetoff [14.1K]
3 years ago
5

PLEASE ANSWERRR ! best Answer gets brainliest answer !!

Mathematics
2 answers:
madreJ [45]3 years ago
8 0

Answer:

Jenny's room

Step-by-step explanation:

The area formula is:

area=length*width

Jenny:

a=l*w

a=13*12

a=156 feet^2

Ruth:

a=l*w

a=14*11

a=154 feet^2

So, Jenny's room has the greater area, because 156 is greater than 154

Hope this helps!

Anastasy [175]3 years ago
4 0

Well, to get perimeter, you add the length and width, and then multiply your answer by two. So:

Jerry-

13+12=25

25*2=50

Ruth-

14+11=25

25*2=50

So both rooms are equal.

Hope this helps!!

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A scientist running an experiment starts with 100 bacteria cells. These bacteria double their population every 15 hours. Find ho
IRISSAK [1]
<h2>Hello!</h2>

The answer is: 23.77 hours

<h2>Why?</h2>

Total(t)=Start*2^\frac{t}{15}

Where:

Total(t) is equal to the amount for a determined time (in hours)

<em>Start</em> is the original amount

<em>t </em>is the time in hours.

For example, it's known from the statement that the bacteria double their population every 15 hours, so it can be written like this:

Total(15)=100*2^\frac{15}{15}=100*2^{1}=100*2=200

To calculate how long it takes for the bacteria cells to increase to 300, we should do the following calculation:

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So, to know if we are right, let's replace 23.77 h in the equation:

Total(t)=100*2^\frac{23.77}{15}=299.94

and 299.94≅300

Have a nice day!

8 0
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Step-by-step explanation:

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