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defon
3 years ago
15

A culture started with 1,000 bacteria. After 2 hours, it grew to 1,100 bacteria. Predict how many bacteria will be present after

9 hours.
Mathematics
2 answers:
Agata [3.3K]3 years ago
7 0

Answer:

450

Step-by-step explanation:

Harrizon [31]3 years ago
6 0

Answer:

450 Bacteria

Step-by-step explanation:

First we need to consider the amount of bacteria that grew after two hours. Since 100 bacteria grew after 2 hours, we need to find how much bacteria grows per hour.

We can find that by dividing 100 by 2

100/2 = 50 Bacteria per hour

Now that we know how much bacteria grows per hour, we can then multiply that amount to the amount of hours asked in the problem.

9 hours x 50 Bacteria = 450 Bacteria in 9 hours.

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The height of a vase is 45.7 centimeters when rounded to the nearest tenth of a centimeter. What is the shortest possible height
vlada-n [284]

Answer:

45.650 centimeters

Step-by-step explanation:

The height of a vase is 45.7 centimeters when rounded to the nearest tenth of a centimeter. What is the shortest possible height of the vase? Give your answer to 3 decimal places

Given that :

Height of vase = 45.7 when rounded to the nearest tenth

The shortest possible height of the vase : will be 45.65, this is because, the subsequent digit (hundredth) after the tenth digit is the figure rounded to give a tenth digit of 7

From the we know that the tenth digit before rounding is 7 - 1 = 6

And smallest possible value the hundredth placed digit could have in other to be rounded to 1 is 5.

To three decimal place, the thousandth placed value could take the least possible value in a digit series, which is 0

Hence, the shortest possible height of the vase = 4.650

4 0
2 years ago
A 50 lb bag of grass seed cost $222.50 find the unit cost per lb of this grass seed
myrzilka [38]
To find the cost per one pound, we divide the total cost $222.50 by the total number of pounds (50 lb).

= $222.50 ÷ 50
= $4.45 per pound


ANSWER: Each pound of grass seed costs $4.45.

Hope this helps! :)
3 0
3 years ago
a car travels 32 km due north and then 46 km in a direction 40 degress west of north. find the magnitude of the cars resultant v
kvv77 [185]

Answer:

50 degrees

Step-by-step explanation:

PLZ MARK BRAINLIEST

5 0
3 years ago
5x - 54 + 3x + 16 = 180<br><br> 3x +16 = 180<br><br> 5x - 54 = 3x + 16
Sloan [31]

Answer:

the answer sdhould be the third one

3 0
3 years ago
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Answer:

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xD might have been the hardest question ever i started to sweat

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