Colby and Jaquan are growing bacteria in an experiment in a laboratory. Colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. Jaquan has a different type of bacteria that doubles every 3 hours. How many bacteria should Jaquan start with so that they have the same amount at the end of the day?

Answers

Answer 1
Assuming the end of the day is 24 hours later

Colby will have 50 X (2 ^ 12) = 204,800

Jaquan finishes with 204,800 after its doubled 8 times (24 / 3). So she needs to start with 204,800 / 2 ^ 8 = 800
Answer 2

Answer:

800

Step-by-step explanation:

204,800 / 2 ^ 8 = 800


Related Questions

Last week,you finished level 2 of a video gamr in 32 minutes. Today, you finish level 2 in 28 minutes. What is your percent change

Answers

so, 32 - 28 is just 4, thus the difference is 4 minutes then.

if we take 32 to be the 100%, what is 4 off of it in percentage?

[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 32&100\\ 4&p \end{array}\implies \cfrac{32}{4}=\cfrac{100}{p}\implies p=\cfrac{4\cdot 100}{32}[/tex]
(32-28)/32 = 0.125
* 100%
= 12.5%

What is 2/7 = 2x what would be the answer

Answers

Hi there!

2/7 = 2x
x = 2/7 ÷ 2
x = 1/7

Hope this helps!

Point E is located at (2, −3) and point F is located at (−2, −1). Find the y value for the point that is 3 over 4 the distance from point E to point F.
A. -2.5
B. -4.5
C. -3.5
D. -1.5

Answers

Y-E = (3/4)(F -E)
Y = (3/4)F -(3/4)E +E
Y = (3F +E)/4
Y = (3(-1) +(-3))/4 = -6/4 = -3/2

the appropriate choice is D. -1.5

A math teacher assigns 3 projects. She gives the students 5 project options to choose from. How many different groups of projects can the students choose from?

Answers

I think it's 8 options
5x4x3x2x1=120 options

just learned this in class the other day

Write an equation or inequality that best represents each statement below


6 times a number, x, is at least 22

Answers

Let the number be x 

6 times the number = 6x

at least 22 (it be 22 or more}
6x ≥ 22

what are the roots of the equation?
x^2+24=14x

enter answers in the boxes

Answers

X²-14X+24=0
(X-2)(X-12)=0
X=2 OR X=12
^2 and ^1

if they want you to solve then

12/7=-x

reuben deposits $700 into an account that pays simple interest at a rate if 5% per year. How much interest will he be paid in the first 3 years.

Answers

Final answer:

Reuben deposits $700 at a 5% annual interest rate for 3 years, using the simple interest formula, he will earn $105 in interest over that period.

Explanation:

The question deals with calculating the simple interest Reuben will receive by depositing $700 into an account at a 5% annual interest rate over 3 years. To calculate simple interest, the formula used is Interest = Principal × Rate × Time. In this scenario, the principal (P) is $700, the rate (R) of interest per year is 5% or 0.05 when expressed as a decimal, and the time (T) is 3 years.

Substituting these values into the formula provides us with: Interest = $700 × 0.05 × 3. Simplifying this gives us: Interest = $105.

Therefore, Reuben will be paid $105 in interest over the first 3 years.

A square pyramid has a base length of 6 inches and a height of 8 inches. What is the volume of this pyramid? Enter your answer in the box. in³

Answers

V = 1/3 a^2 h
V = 1/3(6^2)(8)
V = 1/3(36)(8)
V = 96 in^3

Final answer:

The volume of the square pyramid with a base length of 6 inches and a height of 8 inches is 96 cubic inches.

Explanation:

To find the volume of a square pyramid, you can use the formula V = (1/3) × base area × height, where the base area is the area of the square base. Since the base length is 6 inches, the area of the base is 6 in. × 6 in. = 36 in.². The height of the pyramid is 8 inches. So, the volume of the pyramid can be calculated as follows:

V = (1/3) × 36 in.² × 8 in. = 96 in.³

Therefore, the volume of the square pyramid is 96 cubic inches.

lars has been approved for$420,000, 20-year mortgage with an APR of 5.125%.What is his monthly payment ? How much interest would he expect to pay on the loan in one month?How much of the monthly payment will go towards the principal?

Answers

Answer:

Monthly Payment = $2,286.85

Interest on first month payment = $1,793.75

Principal value on first month payment =  $493.10

Step-by-step explanation:

lars has been approved for $420,000 for loan.

Time for loan = 20-years

APR (Annual Rate of interest ) = 5.125%

We need to find monthly payment. First month interest and First month principle.

Formula for loan:

[tex]p=\dfrac{PV\cdot \frac{r}{n}}{1-(1+\frac{r}{n})^{-nt}}[/tex]

Where,

p is monthly payment.

PV = Loan Amount (PV=$420,000)

R = Rate of interest (R=0.05125)

t = Loan period ( t=30)

n = Mode of payment (n=12)

Substitute the value into formula and solve for p

[tex]p=\dfrac{420000\cdot \frac{0.05125}{12}}{1-(1+\frac{0.05125}{12})^{-12\cdot 30}}[/tex]

p=$2,286.85

Thus, Monthly Payment =$2,286.85

Interest for first month [tex]=420000\times \dfrac{0.05125}{12}=1793.75[/tex]

Interest pay on the loan in on month = $1,793.75

Principle value on first month payment = 2286.85 - 1793.75 = $493.10

The monthly payment will go towards the principal is $493.10

How many extraneous solutions does the equation below have? 9 over n squared +1 =n+3 over 4? 0 1 2 3

Answers

The answer is 0. While the answer for n is approximately 2.384503, there are no EXTRANEOUS solutions. Again, the answer is a.) 0

Answer:

Option 1 - There is no extraneous solution i.e. 0.      

Step-by-step explanation:

Given : Expression [tex]\frac{9}{n^2+1}=\frac{n+3}{4}[/tex]

To find : How many extraneous solutions does the equation have ?

Solution :

First we solve to expression to determine the extraneous solution,

[tex]\frac{9}{n^2+1}=\frac{n+3}{4}[/tex]

Cross multiply,

[tex]9\times 4=(n+3)(n^2+1)[/tex]

[tex]36=n^3+n+3n^2+3[/tex]

[tex]n^3+3n^2+n-33=0[/tex]

An extraneous solution is defined as a solution, such as that to an equation, that emerges from the process of solving the problem but is not a valid solution to the problem.

The equation form is a cubic function so it has 3 solutions.

Therefore, There is no extraneous solution.

A car traveled at an average rate of 51 miles per hour on one highway. It then traveled at an average rate of 71 miles per hour on a second highway. If the car traveled a total of 508 miles in 8 hours, how many miles were driven on the first highway?

Answers

I think it is 63.5 but I am not 100% sure though.

A group of 30 bikers went on a trip. some rode bicycles and the others rode tandems. if the total number of bicycles and tandems was 23, how many tandems were used?

Answers

10 Tandems or 63 Tandems
The answer would be 7 tandems. 

There are 50 dimes in a roll of dimes, 40 nickels in a roll of nickels, and 40 quarters in a roll of quarters. Rob has 12 rolls of coins with a total value of $70.00. He has 3 more rolls of nickels than dimes. How many rolls of each coin does he have?

Answers

5 rolls of quarters, 2 rolls of dimes, 5 rolls of nickles.

The base of a 6-inch long ice cream cone with a diameter of 2 inches, is cut 0.25 inches from the base. This cut creates two shapes, one is a cone, and the other one resembles a cylinder since it was cut so close to the base. What is the BEST estimate for the volume of the shape that resembles a cylinder?

Answers

0.79 cubic inches  i hope this helps you

Find the coordinates of the point (x,y,z)(x,y,z) on the plane z=2x+3y+3z=2x+3y+3 which is closest to the origin.

Answers

The vector equation of the line through the origin perpendicular to the plane is
.. (x, y, z) = t(2, 3, -1)
so the point of interest will satisfy
.. 2(2t) +3(3t) -(-t) = -3
.. 14t = -3
.. t = -3/14
and its coordinates are (x, y, z) = (-3/7, -9/14, 3/14)
Final answer:

To find the point closest to the origin on the plane with equation z = 2x + 3y + 3, an offset vector from the origin to a point on the plane is used. This vector's dot product with the plane's normal vector should be zero, since the shortest path to the plane will be perpendicular to it. This creates a system of equations that can be solved for x, y, and z.

Explanation:

To find the closest point (x, y, z) on the given plane to the origin in three-dimensional Cartesian axes, we can start by creating an offset vector from the origin to an arbitrary point on the plane. Let's use the equation of the plane, z = 2x + 3y + 3. Let's presume a point P(x, y, z) on this plane. The vector to this point from the origin is (x, y, z - 3).

Because we want the shortest distance to the origin, the dot product of this vector and the normal vector to the plane (2, 3, -1) should be zero, because the shortest path to the plane will be perpendicular to it. So, the formula for the dot product gives us:

2*x + 3*y - (z - 3) = 0

This simplifies to:

2x + 3y - z + 3 = 0

Which combined with the equation of the plane (z = 2x + 3y + 3), provides a system of equations that can be solved using methods like Gaussian elimination or substitution.

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what statement about this figure is true-- i know its one of the last two but they both seem right to me

Answers

The third one, " It has rotational symmetry with an angle of rotation of 90"

Tom weighs 168.5 pounds. His son weighs 33.7 pounds. How many times as much as his son does Tom weigh

Answers

168.5 divided by 33.7 is 5
Tom weights 5 times his son’s weight
Tom ways 56.7% more then his son, I believe.

There are different ways to think about the meaning of speed.

Which description correctly completes this sentence?

Speed is ________________________.

A.time traveled times distance traveled

B.time traveled divided by distance traveled

C.the number of hours it takes to travel a certain distance

D.the distance traveled divided by the time it takes to travel that distance

30 POINTS

Answers

Hello!

The answer is D

Hope this helps!

Answer:

D

Step-by-step explanation:

Find the average rate of change of the function

Answers

x1 = 4 so sqrt(4) = 2
x2 = 9 so sqrt(9) = 3
3-2 = 1

9-4 = 5

rate of change = 1/5
to the risk of being redundant

[tex]\bf slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\ -------------------------------\\\\ f(x)= \sqrt{x} \qquad \begin{cases} x_1=4\\ x_2=9 \end{cases}\implies \cfrac{f(9)-f(4)}{9-4}\implies \cfrac{\sqrt{9}-\sqrt{4}}{5} \\\\\\ \cfrac{3-2}{5}\implies \cfrac{1}{5}[/tex]

plez help What is the value of y in the equation 4 + y = −3?

7
1
−1
−7

Answers

The value of  y is -7 because you will add 4 on both sides and adding to negatives is adding and keeping the sign of the larger number.
The answer would be -7, as 4+-7=-3

PLEASE HELP WILL GIVE BRAINLIEST!!! What is the y-intercept of f(x)=(1/2)^x

Answers

Try this explanation:

'y-interception' means x=0.

If x=0, then y=1.


answer: (0;1)

8 students can ride in each van. How many vans are needed for 29 students?

Answers

5. the bus number 5 wont be completely full of students.

There is the need for 4 vans.

To determine how many vans are needed for 29 students, with each van able to transport 8 students, we can use division and then round up, since you can't have a fraction of a van. We divide 29 students by 8 students per van, which gives us 3.625. Since we can't have 0.625 of a van, we need to round up to the next whole number to ensure all students have a seat. That means we need 4 vans to transport 29 students.

Divide the total number of students by the number of students each van can hold: 29 / 8 = 3.625.

Round this number up to the nearest whole number, because you need whole vans: This gives us 4.

Thus, you need 4 vans to transport 29 students.

In a group of 25 factory workers, 20 are low-risk and five are high-risk. two of the 25 factory workers are randomly selected without replacement. calculate the probability that exactly one of the two selected factory workers is low-risk.

Answers

Let
L=event that a selected worker has low risk
H=event that a selected worker has high risk

We need to find
P(HL)+P(LH)
=5*20/(25*24)+20*5/(25*24)
=1/6+1/6
=1/3

The third side of an isosceles triangle is 2 inches shorter than each of the other two sides. if the perimeter of this triangle is 67 inches find the length of each side.

Answers

The third side of the isosceles triangle is 21 inches. 23+23+21=67, and 21 is 2 inches less than 23 inches.

What is the answer to my math problem from my school for homework today?

Answers

Know that there are 16 ounces in one pound.

To get the total amount of food served to all small-sized dogs, multiply a single serving amount (12.5 ounces) by the total amount of small-sized dogs (12).

12.5 × 12 = 150

Collectively, the small-sized dogs are served 150 ounces of dog food a day.

To find the total amount of dog food served to the medium-sized dogs, multiply the amount of one serving (18 ounces) by the total amount of medium-sized dogs (5).

18 × 5 = 90

Altogether, the medium-sized dogs are served 90 ounces of dog food daily.

Add those values together to get the amount of dog food served to both small- and medium-sized dogs in a day.

150 + 90 = 240

The animal shelter serves 240 ounces of dog food to small- and medium-sized dogs every day. But recall we need the answer in pounds. Remember there are 16 ounces in one pound, so if we divide our answer in ounces by 16, we'll have the same answer in pounds.

240 ÷ 16 = 15

Answer:
The shelter serves 15 pounds of dry food in one day.

Jake ate 1/6 of the cookies at the valentines party. If he ate 5 cookies, how many cookies were there in all?

Answers

There were 30 cookies in total.
5 times 6= 30 so im guessing the answer is 30 

What are the slope and the y intercept of the graph of the liner function shown on the grid

Answers

To find the slope use the Rise over Run rule
It rises 2 units and runs 1 unit, so your slope is
2 or 2/1

To find the y-intercept just find where the line crosses the y-axis
it crosses at the -4 mark

Your slope is 2 and y-intercept is -4
Okay. Slope is rise/run and the formula for it is y2 -y1/x2 -x1. we have the points graphed and we will use (2, 0) and (4, 4). Here are what the numbers will represent.

y2 = 4
y1 = 0
x2 = 4
x1 = 2

Now we will subtract. 4 - 0 is 4/ 4 - 2 is 0. 4/2 is 2. The slope is 2. Now, we find the y-intercept, where the line crosses when x = 0. Just by looking at the graph, we can see that -4 is the y-intercept. There. The slope is 2 and the y-intercept is -4. The answer is F.

Which of these distance measures would you most likely find on a walking tour map of downtown Paris, using the metric system?

A. Kilo feet
B. Millimeters
C. Centimeters
D. Meters

Answers

The answer would be meters

Answer:meters

Step-by-step explanation:

Draw a number line and show all numbers that are between 1 and 20 and have exactly 4 factors


(or visualize, make it somewhat close to being a number line)

(work with a number line all positives, 1 being smallest, 20 being biggest.

Answers

1 = 1 x 1 
1 factors

2 = 1 x 2
2 factors

3 = 1 x 3
2 factors

4 = 1 x 4
4 = 2 x 2
3 factors

5 = 1 x 5
2 factors

6 = 1 x 6
6 = 2 x 3
4 factors

7 = 1 x 7
2 factors

8 = 1 x 8
8 = 2 x 4
4 factors

9  = 1 x 9
9 = 3 x 3
3 factors

10 = 1 x 10
10 = 2 x 5
4 factors

11 = 1 x 11
2 factors

12 = 1 x 12
12 = 2 x 6
12 = 3 x 4
6 factors

13 = 1 x 13
2 factors

14 = 1 x 14
14 = 2 x 7
4 factors

15 = 1 x 15
15 = 3 x 5
4 factors

16 = 1 x 16
16 = 2 x 8
16 = 4 x 4
5 factors

17 = 1 x 17
2 factors

18 = 1 x 18
18 = 2 x 9
18 = 3 x 6 
6 factors

19 = 1 x 19
2 factors

20 = 1x 20
20 = 2 x10 
20 = 4 x 5
6 factors

So they are 6, 8, 10, 14 and 15 on the number line

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
-------------------------------------------------------------------

Numbers which have exactly 4 factors between 1 and 20 are 6, 8, 10, 14, 15 represented on number line.

Define factor ?

" In mathematics factor is a number by which when we divides another number remainder is zero."

 

According to the question,

Factors of all the numbers between 1 and 20

2, 3, 5, 7, 11, 13, 17, 19 are prime number , so they have only two factors.

4 = 1, 2, 4

6 = 1, 2, 3, 6

8 = 1, 2, 4, 8

9 = 1, 3, 9

10 = 1, 2, 5, 10

12 = 1, 2, 3, 4, 6, 12

14 = 1, 2, 7, 14

15 = 1, 3, 5, 15

16 = 1, 2, 4, 8, 16

18 = 1, 2, 3, 6, 9, 18

Hence, we conclude that numbers which have exactly 4 factors between 1 and 20 are 6, 8, 10, 14, 15.

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Ella used 1/4 yard of red ribbon. Fill in each box with a number from the list to show equivalent fractions for 1/4

Answers

While you do not have your choices listed, equivalent fractions to 1/4 could be:

2/8; 3/12; 4/16; 5/20; 6/24; etc.

To find equivalent fractions, we multiply the numerator and denominator by the same number.

Answer:

To find fractions equivalent to a given fraction, the process of amplifying the numerator and the denominator of that fraction must be performed. Specifically, each element is amplified by multiplying it by a positive integer. Thus, fractions equivalent to 1/4 are:

(1x2) / (4x2) = 2/8

(1x3) / (4x3) = 3/12

(1x4) / (4x4) = 4/16

(1x5) / (4x5) = 5/20

(1x6) / (4x6) = 6/24 ... Successively.

Step-by-step explanation:

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