how to solve these

1. 8/2 * 6

2. 5/2 * 7

3. 7/2 * 1

Using the bacteria parable, at 11:39 PM the jar is 1/2048 full, calculated by determining the number of doubling intervals (minutes) from midnight when the jar is full.

The bacteria parable is designed to illustrate exponential growth, with bacteria population doubling at predetermined intervals. In the given scenario, the population doubles every minute, and the jar is full at midnight.

Working backwards from the full point (midnight), we can determine the state of the jar at any time before midnight.

Consequently, to find what fraction of the bottle is full at 11:39 PM, we simply count backward the number of doubling intervals (minutes) from midnight.

At 11:50 PM, the jar is half full. Each minute going back cuts the fullness of the jar by half:

Therefore, at 11:39 PM, the jar is 1/2048 full.

12.66 or 12 2/3 hrs because 25-6 = 19, $19.00 divided by $1.50 = 12.66 cont. rounded to 12 2/3

Final answer:

After deducting the $6.00 admission fee from the $25.00, Jon has $19.00 left to spend on roller blade rentals. At $1.50 per hour, he can skate for 12 full hours with his remaining budget.

Explanation:

To calculate how many hours Jon can skate for $25, we'll first account for the fixed admission fee and then see how the remaining amount can be used for hourly rental of roller blades.

Step 1: Subtract the Admission Fee

Jon has to pay a fixed admission fee of $6.00 when he enters the skating rink.

Start with the total amount Jon is willing to spend: $25.00.

Subtract the fixed admission fee: $25.00 - $6.00 = $19.00.

Step 2: Calculate the Number of Hours

The cost per hour for renting roller blades is $1.50.

Divide the remaining amount by the hourly rental rate to find out how many hours Jon can rent the roller blades.

$19.00 / $1.50 per hour = 12.6667 hours.

Since Jon cannot skate for a fraction of an hour, we can round it down to 12 hours.

Jon can skate for 12 hours with his $25 budget after paying for the admission fee.

*(Answer)*= [tex]4/3[/tex]

*(Explanation)*= You multiply 3 (denominator) to 1 (whole number) then you add 1 (numerator)

The answer:

25 feet per 1 second

2k=26

To find this get k by itself and to do so get rid of the numbers on it's side.

To do so do the opposite of the symbol

Ex: when adding, subtract it from both sides.

Ex when dividing multiply both sides

Now to solve this

Divide 2 from both sides which gives the answer

K=13

[tex]f(x)=2x^2+5\sqrt{x-2}\\\\f(3)\to\text{put the value of x = 3 to the equation of the function}\\\\f(3)=2(3^2)+5\sqrt{3-2}=2(9)+5\sqrt1=18+5(1)=18+5=23[/tex]

Answer:

2 1/12

Step-by-step explanation:

Maddie wants her total hours to be 10 1/2. That is, she want the sum of the daily hours to be that value:

... 10 1/2 = 2 1/2 + 2 2/3 + 3 1/4 + (more hours)

Subtracting the contant terms on the right, we can find the value of (more hours).

... 10 1/2 - 2 1/2 - 2 2/3 - 3 1/4 = (more hours)

Doing the subtraction left to right, we have

... 8 - 2 2/3 - 3 1/4 = (more hours)

... 5 1/3 - 3 1/4 = (more hours)

... 2 1/12 = (more hours)

The only subtraction that may require any extra effort is subtracting 1/4 from 1/3.

... (1/3) - (1/4) = (4/12) - (3/12) = (4 -3)/12 = 1/12

_____

If you play with fractions very much, this is a number fact you will have run across before.

The sale price of the item is $35.10.

To find the sale price of an item with a markdown, you can follow these steps:

1. Convert the markdown percentage to a decimal. In this case, the markdown is 22%, so convert it to 0.22.

2. Subtract the decimal equivalent of the markdown from 1. This will give you the "discount factor." In this case, 1 - 0.22 = 0.78.

3. Multiply the original price by the discount factor to find the sale price.

Let's calculate it:

1. Markdown as a decimal: 22% = 0.22.

2. Discount factor: 1 - 0.22 = 0.78.

3. Sale price = Original price * Discount factor

  Sale price = $45.00 * 0.78

  Sale price = $35.10.

So, the sale price of the item is $35.10.

Explanation: The markdown percentage of 22% represents the reduction in price from the original price. By subtracting this percentage from 100% (or 1 in decimal form), we find the discount factor, which tells us how much of the original price remains. Multiplying the original price by the discount factor gives us the sale price. In this case, the sale price is $35.10, reflecting a 22% reduction from the original price of $45.00.

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The probable question may be:

Find the sale price of the following item. Round to two decimal places when necessary: Original price: $45.00; Markdown : 22%.

Step-by-step explanation:

(x, y) → (x + 2, y - 4 ) means add 2 to the x- coordinate of the original point and subtract 4 from the y- coordinate of the original to obtain the image

(a_{0} + 2, a_{1} - 4 )

(a_{2} + 2, a_{3} - 4 )

(a_{4} + 2, a_{5} - 4 )

The translated coordinates are (a₀ + 2, a₁ - 4 ) (a₂ + 2, a₃ - 4 ) (a₄ + 2, a₅ - 4 ).

The complete image of the question is attached with the answer below.

A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.(x, y) → (x + 2, y - 4 ) means add 2 to the x- coordinate of the original point and subtract 4 from the y- coordinate of the original to obtain the image

A' =  (a₀ + 2, a₁ - 4 )

B'  = (a₂ + 2, a₃ - 4 )

C'  = (a₄ + 2, a₅ - 4 )

Therefore the translated coordinates are (a₀ + 2, a₁ - 4 ) (a₂ + 2, a₃ - 4 ) (a₄ + 2, a₅ - 4 )

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3.4/55.318= 0.06146281499

There isn't much of a way to explain this just divide it as it is stated.

let L be the length

let W be the width

L = 9 + 2W

since the perimeter = 2L + 2W

Perimeter = 2 x (9 + 2W) + 2W

174 m = 18 + 4W + 2W

174 m = 18 + 6W

6W = 174 - 18

6W = 156

W = 156/6

W = 26

L = 9 + 2W

L = 9 + 2 x 26

L = 9 + 52

L = 61

Therefore, length = 61 m and width = 26 m.

Respuesta: 12 estudiantes trajeron pilas

Solución:

Numero total de estudiantes: 30

Sea:

x: numero de estudiantes que trajeron pilas

y: numero de estudiantes que no trajeron pilas

x+y=30 (1)

La razón entre los estudiantes que trajeron pilas y los que no trajeron es como 2 es a 3:

Razón: r=x/y=2/3 (2)

Cuantos estudiantes trajeron pilas?

x=?

Tenemos un sistema de 2 ecuaciones con 2 incógnitas:

(1) x+y=30

(2) x/y=2/3

Vamos a resolver para x. Multiplicando en cruz en la segunda ecuación:

(2) 3x=2y

Depejando y: Dividiendo ambos lados de la ecuación entre 2:

3x/2=2y/2

3x/2=y

y=3x/2

Sustituyendo y por 3x/2 en la primera ecuación:

(1) x+y=30

x+3x/2=30

Sumando los términos en el lado izquierdo de la ecuación:

(2x+3x)/2=30

5x/2=30

Despejando x:

x=30*2/5

x=60/5

x=12

Answer: Respuesta: 12 estudiantes trajeron pilas

Solución:

Numero total de estudiantes: 30

Sea:

x: numero de estudiantes que trajeron pilas

y: numero de estudiantes que no trajeron pilas

x+y=30 (1)

La razón entre los estudiantes que trajeron pilas y los que no trajeron es como 2 es a 3:

Razón: r=x/y=2/3 (2)

Cuantos estudiantes trajeron pilas?

x=?

Tenemos un sistema de 2 ecuaciones con 2 incógnitas:

(1) x+y=30

(2) x/y=2/3

Vamos a resolver para x. Multiplicando en cruz en la segunda ecuación:

(2) 3x=2y

Depejando y: Dividiendo ambos lados de la ecuación entre 2:

3x/2=2y/2

3x/2=y

y=3x/2

Sustituyendo y por 3x/2 en la primera ecuación:

(1) x+y=30

x+3x/2=30

Sumando los términos en el lado izquierdo de la ecuación:

(2x+3x)/2=30

5x/2=30

Despejando x:

x=30*2/5

x=60/5

x=12

What is [tex]7\dfrac{3}{8}[/tex] of [tex]1600[/tex] ?

You must multiply [tex]1600[/tex] by [tex]7\dfrac{3}{8}=\dfrac{7\cdot8+3}{8}=\dfrac{59}{8}[/tex].

[tex]1600\cdot\dfrac{59}{8}=200\cdot\dfrac{59}{1}=200\cdot59=11800[/tex]

i think it is the third one

                                                   hope it helps

Answer:

The given equation is

 →x²=16

→x²-16=0

→(x-4)(x+4)=0

x=4, -4

p=4

q=-4

Option C

A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on the number line, and all these are increments are labeled. A dot is shown on positive 4, another dot is shown on negative 4, and are labeled as p and q, respectively.

X/4 +5/8 = 3/8

X/4 = 3/8-5/8

X/4 = (3-5)/8

X/4 = -2/8

Multiply both sides by 4 we get

4x/4 = -8/8

X = -1

proportional relationship between the amount of raisins, r (cups), and the amount of peanuts, p (cups), in this recipe is [tex]r = \frac{2}{3} p[/tex]

What is proportional relationship?

We can state that two variables are in a proportional relationship if one of them is always equal to a constant multiplied by the other (quantity).

A mathematical comparison of two numbers is called a proportion. Let's examine proportionality in greater detail.

Different sorts of proportions can be categorized based on the type of relationship that two or more amounts share. Two different proportions exist.

1.Direct Proportion relationship

2. Indirect Proportion relationship

For every 6 cups of peanuts, a trail mix recipe calls for 4 cups of raisins.

The quantity of raisins, measured in cups, and the quantity of peanuts, measured in cups, are inversely proportionate in this recipe.

Ratio of raisins to peanuts is either 4:6 or 2:3.

It would apply to all mixtures equally.

If there are p cups of peanuts and r cups of raisins, then r:p is the mixed ratio.

Therefore,

[tex]\frac{r}{p} = \frac{2}{3}[/tex]

[tex]r= \frac{2}{3}p[/tex]

Therefore, the proportional relationship between the amount of  raisins, r (cups), and the amount of peanuts, p (cups), in this recipe. is

[tex]r = \frac{2}{3} p[/tex]

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Final answer:

In this question, the student is asking about the proportional relationship between the amount of raisins and peanuts in a trail mix recipe.

Explanation:

In this question, the subject is Mathematics and the grade level is Middle School.

The question is related to proportional relationships in a trail mix recipe. The recipe calls for 4 cups of raisins for every 6 cups of peanuts. This means that for every 6 cups of peanuts, you need to add 4 cups of raisins. The relationship between the amount of raisins and the amount of peanuts is proportional, with a ratio of 4:6 or simplified as 2:3.

To determine the amount of raisins needed for a given amount of peanuts, you can set up a proportion. For example, if you have 12 cups of peanuts, you can use the ratio 2:3 to find out how many cups of raisins you need. Cross-multiplying, you get 2x = 3x 12, where x represents the number of cups of raisins. Solving for x, you find that x = 8. Therefore, you would need 8 cups of raisins for 12 cups of peanuts.

Answer:

9 birds landed on the fence. 18 - 9 = 9

Why hello there!

The correct answer is 9 your equation is down below

9+x=18 we use the oppisie of adding so subracting and turn the eqation to this

9-18=x so x=9

If my answer helped please mark me as brainliest thank you and have the best day ever!

Suppose the length of each side of the cube is x, so the volume must be:  

x^3.  

If the volume is 15 cm^3, so the length must be cuberoot(15) which is not integer,. So, the volume of the cube with integer side never equal with 15 cm^3

Final answer:

The volume of a cube with integer edge lengths must be a perfect cube of an integer, and since 15,000,000 (15m^3) is not a perfect cube, the cube's volume cannot be 15m^3.

Explanation:

The volume of a cube is calculated by cubing the edge length, which means multiplying the length of an edge by itself three times (x3). If the length of each edge of a cube is x centimeters and x is an integer, the volume in cubic centimeters will also be an integer because the cube of any integer is an integer. Since the question specifies a volume of 15m3, which is 15,000,000 cm3 (because 1m3 equals 1,000,000 cm3), and 15,000,000 is not a perfect cube of any integer, the edge length x cannot be an integer, thus the volume of the cube cannot be 15m3.

The cost is $395.  You are trying to find n in 24n + 35.

Set C = 395.

You get 395 = 24n + 35.

Solve for n by first subtracting 35 from both sides of the equation:

395 - 35 = 360.

24n + 35 - 35 = 24n.

Now you have 360 = 24n.  Divide both sides by 24 to get:

15 = n.

So, 15 birthday cakes are made when the cost is $395.

The Number of cakes that can be made with $395 is 15.

The cost function :

C(n) = 24n + 35

The number of cakes, n that can be made with $395:

Substitute, C(n) = 395 into the equation :

395 = 24n + 35

24n = 395 - 35

24n = 360

Divide both sides by 24

n = 360 / 24

n = 15

Therefore, 15 cakes can be made with $395

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Because G is a 90 degree angle ( right angle) the 2 angles given when added together also need to equal 90 degrees:

4x + 5x = 90

Combine like terms:

9x = 90

Divide both sides by 9:

X = 90/9

X = 10

2x and 8X are supplementary angles and need to equal 180 degrees when added together:

2x + 8x = 180

Combine like terms:

10x = 180

Divide both sides by 10:

X = 180 /10

X = 18

The inside angle where they have 32 is a vertical angle to 32 so it is also 32.

The four inside angles need to equal 360 degrees.

Subtract the 3 known angles from 360 to find x:

X = 360 - 158 - 148 - 32 = 22 degree.

(4k+2)(k-2)/(k^2-4)(2k+1)

=2(2k+1)(k-2)/ (k^2-2^2)(2k+1)

Cancel out 2k+1

2(k-2)/(k-2)(k+2) using a^2-b^2=(a-b)(a+b)

cancel out k-2

2/k+2

Therefore numerator is 2

Best Answer:  m∠ABF = (8x + 6) degrees and m∠ABE = 2(x + 11) degrees  

m∠EBF = (6x - 16)

To find the measure of angle ABF, set up an equation using the given angles ABE and EBF. Simplify and solve the equation to find the value of x. Substitute the value of x back into the equation to find the measure of angle ABF.

To find the measure of angle ABF, we need to set up an equation using the given angles ABE and EBF. We can set up the equation as follows:

ABE + EBF = ABF

Substituting the given values:

(11x - 31) + (2x - 9) = 6x + 26

Simplifying the equation:

13x - 40 = 6x + 26

Moving the variables to one side:

13x - 6x = 26 + 40

Combining like terms:

7x = 66

Dividing both sides by 7:

x = 9.4286

Substituting the value of x back into the equation:

ABF = 6(9.4286) + 26

ABF = 56.5714 + 26

ABF = 82.5714

Therefore, the measure of angle ABF is 82.5714 degrees.

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