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3 years ago

7

If there are initially 2000 bacterial in a culture, and the number of bacteria doubles each hour, the number of bacteria after t

hours can be found using the formula N = 2000(2t). How many bacteria will be present after 7 hours?

2 answers:

aliina [53]3 years ago

8 0

Answer:

2 4 8 16

16

Step-by-step explanation:

Nezavi [6.7K]3 years ago

7 0

Replace 7 for the variable, t. N= 2000(2(7))= 28000

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You randomly choose one marble from the jar. Find the theoretical probability of the event.

zysi [14]

Answer:

1. 33%

2. 16%

3. 50%

Step-by-step explanation:

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2 years ago

Oriole Rental Company provided the following information to its auditors. For the year ended March 31, 2017, the company had rev

nikklg [1K]

Answer:

the cash flow from operation is $267,397

Step-by-step explanation:

Given that

Revenues be $876,223

General and admin expense $352,479

Depreciation expense $131,455

Leasing expense $108,195

Interest expense $78,122

Tax rate is 34%

We need to find out the cash flow from operation

As we know that

Cash flow from operation = (Revenue - general & admin expense - depreciation - leasing - interest) × (1 - tax rate) + depreciation

= ($876,223 - $352,479 - $131,455 - $108,195 - $78,122) × (1 - 0.34) + $131,455

= $205,972 × (1 - 0.34) + $131,455

= $267,397

Hence, the cash flow from operation is $267,397

8 0

3 years ago

Mr. Bell wants to plant a rectangular garden in his backyard. He has 100 feet of fence to

vovangra [49]

Answer:

The dimensions of the garden are 22.5ft by 27.5ft

Step-by-step explanation:

Here, we want to calculate the dimensions of the garden.

let the length be x ft

we are told that the he wants the length to be 5 feet more than the width;

That means the width will be (x-5) ft

Mathematically;

Since the shape is rectangular, the perimeter will be 2( l + w)

Thus; 2(x + x-5) = 100

2(2x-5) = 100

divide both sides by 2

2x-5 = 50

2x = 50 + 5

2x = 55

x = 55/2

x = 27.5 ft

The width is thus; 27.5ft - 5ft = 22.5ft

the dimensions of the garden are 27.5 ft by 22.5 ft

5 0

3 years ago

A boat travels at a constant speed. After 20 minutes, the boat has traveled 2.5 miles. The boat travels a total of 10 miles to a

monitta

In order to find the speed at which the boat is traveling, we divide the distance it has traveled by the time elapsed:

2.5/20=0.125 miles/minute

Next, we want to find how long it took for the boat to travel 10 miles. Since it travels 0.125 miles every minute, we just divide:

10/0.125=80

Thus, it took 80 minutes for the boat to reach the bridge

6 0

3 years ago

Choose the equation that represents the line that passes through the point (-1, 6) and has a slope of -3.

stich3 [128]

Answer:

Equation of line is $\mathbf{y=-3x+3}$

Option A is correct.

Step-by-step explanation:

We need to write an equation that represents the line that passes through the point (-1, 6) and has a slope of -3.

The equation will be of slope-intercept form: $y=mx+b$

where m is slope and b is y-intercept

We are given slope m =-3, we need to find y-intercept b

Finding y-intercept

using slope m=-3 and point (-1, 6)

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So, y-intercept b is 3

Now the equation of line having slope m= -3 and y-intercept b = 3 is

$y=mx+b\\y=-3x+3$

Equation of line is $\mathbf{y=-3x+3}$

Option A is correct.

3 0

2 years ago