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Len [333]
3 years ago
13

Who gon help me wit math

Mathematics
1 answer:
irga5000 [103]3 years ago
5 0

Answer:

I can't see what it says u should retake a pic

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The number of bacteria in a certain culture doubled every hour. If there were 30 bacteria present in the culture initially, how
vichka [17]

Answer:

The number of bacteria after 8th will be 3840

Step-by-step explanation:

Given the initially 30 bacteria present in the culture.

Also, the number of bacteria got doubled every hour.

So, using the equation

A=A_0r^{n-1}

Where A is number of bacteria after n hours.

A_0 is bacteria present initially.

r is the common ration, in our problem it is given that bacteria doubles every hour. So, r=2

And n is the number of hours. In our problem we need amount of bacteria at the end of 8th hours. So, n=8

Plugging values in the formula we get,

A=30(2)^{8-1}\\A=30\times 2^7\\A=30\times 128\\A=3840

So, number of bacteria after 8th will be 3840

3 0
3 years ago
What’s the correct answer for this?
Anton [14]

Answer:

A

Step-by-step explanation:

Plate X will result in the lightest place since it's density and thickness both are less.

6 0
2 years ago
A factory adds three red drops and two blue drops of coloring to white paint to make each pint purple The factory will make 50 g
Radda [10]

30 gallons of red paint  &  20 gallons of blue paint

Step-by-step explanation:

The ratio of red to blue paint drops to make purple paint is 3 : 2

Therefore the total number of gallon, in this case, fifty (50) is equivalent to the total of two ratios (which is 3 + 2 5)

If 5 in the ratio = 50; what about 2  & 3

5 = 50

2 = x

After cross multiplication;

5x = 50 * 2

X = 100/5

X = 20

The same for ratio 3

5 = 50

3 = y

5y = 50 * 3

y = 150/5

y = 30

The answer is therefore; 30 gallons of red paint to 20 gallons of blue paint

Learn More:

For more on ratios check out;

brainly.com/question/11662922

#LearnWithBrainly

7 0
3 years ago
What is the value of x in the equation 7(4x+1)-3x=5x-13
skelet666 [1.2K]

Answer:

in this equation, x = -1

Step-by-step explanation:

hope this helps!

5 0
3 years ago
Read 2 more answers
I need a lot of help with this problem lol. I need help finding the mean, median, mode, and range for the numbers .06, 1.10, .75
son4ous [18]

Answer:

mean = 0.76

median = 0.75

range = 1.79

Step-by-step explanation:

mean = sum/no of items

for media they need to be sorted: 0.05,0.06,0.75,1.10,1.84

median is the middle item, so 0.75

range = largest item - smallest item = 1.84 - 0.05 = 1.79

3 0
2 years ago
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