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Sonja [21]
2 years ago
9

More work that was due yesterday help?

Mathematics
2 answers:
Troyanec [42]2 years ago
8 0

So what is the question?

serg [7]2 years ago
3 0

Answer:

What is the question?????

Step-by-step explanation:

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The number of hours, t, that bacteria spread 10-fold can be modeled by the equation B(t) = B0(10)2t. There are 25 bacteria prese
nordsb [41]

Answer: 1.67 hours.


Explanation:


1) Function that models the number of bacteria:


B(t)=B_0(10)^{2t}


2) Bo = 25, then the function is:


B_0=25(10)^{2t}


3) To know how many hours will elpase until the number of bactaria is 55,00, you equals B to 55,500 in the equation and solve for t, in this way:


i) start

55000=25(10)^{2t)


ii) division property

2200=10^{2t}


iii) antilogarithm property

2t = log_{10}2200


iv) division property

t=\frac{log_{10}2200}{2}


v) Due the operations:


t = 1.67 hours.


Note that the time is less than 2 hours. That sounds fine since after 1 hour there will be 10 times 25 (250 bacteria), and after 2 hours 100 times 25 (2500 bacteria).

3 0
3 years ago
Tony bought 3 packs of pencils for $4 each and a pencil box for $7. Mario bought 4 binders for $6 each and used a coupon for $6
alekssr [168]

Answer:

Tony

Step-by-step explanation:

Tony:

3 Packs = 12 dollars

1 Pencil Box = 7 dollars


Mario:

4 Binders = 24 dollars

-6.


12+7= 19

24-6=18


Tony spent more money.

4 0
3 years ago
When can you use the quotient rule to divide?
adoni [48]

All times. The numbers you are dividing with are quotients.

4 0
2 years ago
A right rectangular prism has edges of 8 feet, 4 feet, and 1/2 foot. How many cubes with side lengths of 1/2 foot would be neede
Ksenya-84 [330]

Answer:

Step-by-step explanation:

From the question we are told that

Edges of 8 feet, 4 feet, and 1/2 foot

Generally the volume V_p of the right rectangular prism is mathematically represented as

V_p=8*4*0.5

V_p=16

Generally volume of the cube V_c is mathematically given as

V_c =(\frac{1}{2})^3

V_c =\frac{1}{6}

Therefore total number of cubes is given as

V=\frac{V_p}{V_c}

V=\frac{16}{\frac{1}{6}}

V=96

4 0
3 years ago
An ice cream factory makes 170 quarts of ice cream in 2 hours how many quarts could be made in 36 hours what was that rate per d
Katyanochek1 [597]
170 quarts/2 hours = 85 quarts/hour 

85 quarts/hour * 36 hours = 3060 quarts

85 quarts/hour * 24 hours = 2040 quarts
8 0
3 years ago
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