Candace bought 5 magazines. Her total bill came to $8.75. If all the magazines cost the same amount, what was the cost of one magazine? ANSWER for 10 brainly points

Answer:

x=75

Step-by-step explanation:

because 1x=15

15x5=75 or 5 x

Therefore, the value of n that makes the system of equations true is n = 10.

Given:

p = 2n

p - 5 = 1.5n

Substituting the value of p from the first equation into the second equation, we have:

2n - 5 = 1.5n

Next, we can solve for n by subtracting 1.5n from both sides of the equation:

2n - 1.5n - 5 = 0.5n - 5

Simplifying further:

0.5n - 5 = 0

Adding 5 to both sides of the equation:

0.5n = 5

Dividing both sides by 0.5:

n = 10

Therefore, the value of n that makes the system of equations true is n = 10.

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The condition prevalence frequency distribution for the 59 regions represents the distribution or pattern of the prevalence of a specific condition or disease across those regions.

In more detail, the condition prevalence frequency distribution provides information on the frequency or occurrence of a particular condition within a given population or set of regions. It presents the number or proportion of individuals within each region who have the specific condition. By examining the distribution, researchers or healthcare professionals can gain insights into the geographic variation of the condition, identify regions with higher or lower prevalence rates, and assess the burden of the condition in different areas.

The distribution allows for the comparison of prevalence rates among the regions and can help in identifying potential risk factors or underlying causes that may contribute to the variation in prevalence. It also serves as a valuable tool for public health planning and resource allocation, as regions with higher prevalence rates may require more targeted interventions or healthcare services. Overall, the condition prevalence frequency distribution provides a comprehensive overview of the distribution and burden of the condition across the 59 regions, aiding in the understanding and management of the health issue at hand.

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What does the condition prevalence frequency distribution represent for the 59 regions?

The initial velocity required in the roller coaster design is also 26 m/s.

what is an algebraic expression?

An algebraic expression is a mathematical phrase consisting of numbers, variables, and mathematical operations such as addition, subtraction, multiplication, and division.

To determine the initial velocity required in a roller coaster design, we can use the conservation of energy principle. At the top of the drop, the total energy of the roller coaster is potential energy, given by mgh, where m is the mass of the roller coaster, g is the acceleration due to gravity, and h is the height of the drop.

At the bottom of the drop, the total energy of the roller coaster is kinetic energy, given by (1/2)mv^2, where v is the velocity of the roller coaster at the bottom.

By equating the two energies, we get:

mgh = (1/2)mv^2

Solving for the initial velocity, we get:

v = sqrt(2gh)

where h is the height of the drop.

Substituting the given values, we get:

v = sqrt(2 x 9.8 m/s^2 x 34 m) = 26 m/s

Therefore, the initial velocity required in the roller coaster design is also 26 m/s.

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Answer:

-37/68

Step-by-step explanation:

3/4(14x+8)-(1/2x+2)=3/8(4-x)-1/4

(21/2x+6)-(1/2+2)=(3/2x-3/8)-1/4

(21/2x-1/2x)+(6-2)=3/2x-3/8-1/4

10x+4=3/2x-5/8

37/8=-17/2x

37/8 (2)=-17/2x(2)

37/4=-17x

37/68=-x

-37/68=x

Answer:

$45

Step-by-step explanation:

Answer:

$45

Step-by-step explanation:

If they are 25% off, they are now wroth 75% of original price

0.75 * $60 = $45

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The 90% confidence interval obtained from examining 653 customers in one fast food chain's drive-through has a lower bound of 178.2 seconds and an upper bound of 181.6 seconds. This means that based on the sample data collected from the 653 customers, we can be 90% confident that the true average drive-through service time for this fast food chain falls within the range of 178.2 seconds to 181.6 seconds.

In other words, if we were to repeatedly sample 653 customers from the same fast food chain's drive-through and calculate confidence intervals, approximately 90% of those intervals would contain the true average service time of the entire population of customers.

The range between the lower and upper bounds of the confidence interval provides an estimate of the precision or uncertainty associated with our sample mean.

The narrower the interval, the more precise our estimate of the true population mean becomes. In this case, the interval is relatively narrow, indicating a relatively precise estimate of the average drive-through service time for this fast food chain based on the sample data.

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Answer: Super Lightweight to Middleweight

Step-by-step explanation: I'm assuming you're talking about boxing weight class. If not, please let me know.

Given the values ſul = 2, v = 3, and u:v = -1. Now, let's calculate the following u + v, To calculate u + v, we just need to substitute the given values in the expression. u + v= u + (-u)= 0.Therefore, u + v = 0.

(b) lu - vl.

To calculate lu - vl, we just need to substitute the given values in the expression.

l u - vl = |-1|×|3|= 3.

Therefore, lu - vl = 3.

(c) 2u + 3v
To calculate 2u + 3v, we just need to substitute the given values in the expression.

2u + 3v = 2×(-1) + 3×3= -2 + 9= 7.

Therefore, 2u + 3v = 7.

(d) Jux v

To calculate u x v, we just need to substitute the given values in the expression.

u x v = -1×3= -3.

Therefore, u x v = -3.

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The 100 containers that the quality control division of Rothschild's Blueberry Farm randomly inspects.

Population: The containers of blueberries that are being sent to Stop and Shop.

Sample: The 100 containers that the quality control division of Rothschild's Blueberry Farm randomly inspects.

Therefore, the 100 containers that the quality control division of Rothschild's Blueberry Farm randomly inspects.

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Answer:

Step-by-step explanation:    3?    

Answer:

1) x = 208     2) n = 28

Hope this helps! Have a great day!!

Step-by-step explanation:

1)

x  -  72  =  136

    +  72      +72

x             =    208

2)

 n  -  10  =  13  +  5

 n  -  10  =  18

       +10       +10

        n      =  28

First off we will use our definitions so you know what do to next time and make it easier,

Algebra - the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.

_______________

Now we can start!

\(\huge\blue{\mid{\fbox{\tt{NUMBER\:ONE}}\mid}}\)

Add 72 to both sides,

Answer : \(x=208\)

\(\huge\blue{\mid{\fbox{\tt{NUMBER\:TWO}}\mid}}\)

Simplify ⇒ \(13+5\) ⇒ \(18\)

Add 10 to both sides

Answer : \(n=28\)

Answer:

\(x + \frac{5}{8} = \frac{7}{6} \)

\( x = \frac{7}{6} - \frac{5}{8} \)

\(x = \frac{13}{24} \)

Answer:

x=13/24

Step-by-step explanation:

First subtract 5/8 from both sides

5/8 - 5/8 = 0

7/6-5/8= 13/24

So x=13/24

Answer:

A.

Step-by-step explanation:

sinx = opposite over hypotenuse

We are given from the picture that our hypotenuse is √34 and our opposite is 3:

sin(x) = 3/√34

sin(x) = 3√34/34

To prove that the argument is valid using propositional logic, we can apply logical rules and deductions. Let's break down the argument step by step:

(A + B) ^ (C V -B) ^ (-D --> C) ^ A ^ D

We will represent the proposition as follows:

P: (A + B)

Q: (C V -B)

R: (-D --> C)

S: A

T: D

From the given premises, we can deduce the following:

P ^ Q (Conjunction Elimination)

P (Simplification)

Now, let's apply the rules of disjunction elimination:

P (S)

A + B (Simplification)

Next, let's apply the rule of disjunction introduction:

C V -B (S ^ Q)

Using disjunction elimination again, we have:

C (S ^ Q ^ R)

Finally, let's apply the rule of modus ponens:

-D (S ^ Q ^ R)

C (S ^ Q ^ R)

Since we have derived the conclusion C using valid logical rules and deductions, we can conclude that the argument is valid.

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What is a slope in math?

The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).

Whenever the equation of a line is written in the form y = mx + b, it is called the slope-intercept form of the equation. The m is the slope of the line. And b is the b in the point that is the y-intercept (0, b). For example, for the equation y = 3x – 7, the slope is 3, and the y-intercept is (0, −7).

To find the correct answer, we need to look at the formula for a straight line: y=mx+b where m= the slope of the line and b= the y intercept. We know from the problem that the slope must be equal to -4, leaving us with y= -4x +b. From here you can substitute the given point in the equation and solve for b.

-3= -4(4) +b

-3= -16+b

+16  +16

13= b

This tells us that b=13, now we simply substitute that into the formula.

The solution to your question is y=-4x+13

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The maximum depth of the water in the aquarium include the following:

In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:

Volume of a rectangular prism = L × W × H

Where:

By substituting the given dimensions (side lengths) into the formula for the volume of a rectangular prism, we have;

4.32 × 10⁶ = 2.4 × 10² × 1.2 × 10² h

Depth, h = 4.32 × 10⁶/2.88 × 10⁴

Depth, h = 1.5 × 10² cm.

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This integral will give us the volume of the solid under the surface z = 1 + x²y² and above the region enclosed by x = y² and x = 4.

The summing of discrete data is indicated by the integration. To determine the functions that will characterize the area, displacement, and volume that result from a combination of small data that cannot be measured separately, integrals are calculated.

To find the volume of the solid under the surface z = 1 + x²y² and above the region enclosed by x = y² and x = 4, we can set up a double integral over the given region.

First, let's find the limits of integration for the variables x and y by considering the given equations x = y² and x = 4.

The region enclosed by x = y² and x = 4 can be visualized as a parabolic shape between x = 4 and x = 16 (since 4 is the square of 2, and 16 is the square of 4).

So, the limits of integration for x are from 4 to 16.

For each x value within this range, the limits of integration for y will be from the lower curve y = √x to the upper curve y = √4 = 2 (since the parabolic shape is symmetric about the y-axis).

Therefore, the limits of integration for y are from √x to 2.

Now we can set up the double integral:

∬(R) (1 + x²y²) dy dx,

where R represents the region of integration.

Integrating with respect to y first, the inner integral becomes:

∫[√x, 2] (1 + x²y²) dy,

Integrating this with respect to y gives:

[y + (x²y³)/3] evaluated from √x to 2.

Substituting the limits of integration:

[(2 + (8x²)/3) - (√x + (x²√x)/3)],

Now, we integrate this expression with respect to x:

∫[4, 16] [(2 + (8x²)/3) - (√x + (x²√x)/3)] dx.

Evaluating this integral will give us the volume of the solid under the surface z = 1 + x²y² and above the region enclosed by x = y² and x = 4.

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Both the white longhair female cat (w/w; l/l) and the black shorthair male cat (w/w; l/l) are homozygous for the white coat color (w/w) and the longhair trait (l/l).

When these cats mate, all the kittens will inherit one allele for each trait from each parent. Since both parents are homozygous for the white coat color (w/w), all kittens will also inherit the white coat color gene from both parents, resulting in white kittens (w/w). Similarly, both parents are homozygous for the longhair trait (l/l), so all kittens will inherit the longhair allele from both parents, making them longhair kittens (l/l).

In conclusion, all 12 kittens will have a white coat color and long hair, just like their parents. They will look like white longhair kittens, with the genotype (w/w; l/l) for both traits. It is important to remember that being a responsible pet owner includes spaying or neutering your pets to prevent unwanted litters, and finding loving homes for any kittens or puppies that may be born.

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The distance from the point P(-8,-3,5) to the line with the parametric equations x = -8 + 4t, y = -3 + 4t, z = 5 is 0 units.  

To find the distance between a point and a line, we can use the formula:

d = |AP × u| / |u|

where AP is the vector from any point on the line to the given point, u is the direction vector of the line, and × represents the cross product. First, we find the vector AP by subtracting the coordinates of the point P from a point on the line, which is (-8, -3, 5):

AP = (-8, -3, 5) - (-8, -3, 5) = (0, 0, 0)

Next, we find the direction vector u of the line, which is (4, 4, 0). Taking the cross product of AP and u, we get:

AP × u = (0, 0, 0) × (4, 4, 0) = (0, 0, 0)

The magnitude of AP × u is |AP × u| = 0. The magnitude of u is |u| = sqrt(4^2 + 4^2 + 0^2) = sqrt(32) = 4√2. Finally, we can calculate the distance using the formula:

d = |AP × u| / |u| = 0 / (4√2) = 0

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Answer:

(4, 3)

Step-by-step explanation:

Plug in x - 1 where y is. The equation will turn in 2x - 3(x - 1) = -1. Distribute, and you'll have 2x -3x + 3 = -1. Combine like terms (2x and -3x) and you'll have -x + 3 = -1. Subtract 3 from both sides, and you'll have -x = -4. Divide by -x (or -1) on both sides, and you'll have x = 4. Since y = x - 1, y = 3, since 4 - 1 = 3. Sorry if this sounds repetitive btw. Good luck :D

The a = 0.01 critical value for the chi - square statistic with 13 degrees of freedom is given by 27.688.

Hence the correct option is (A).

Here given distribution is Chi - squared distribution.

two parameters of chi - squared distribution are given by ' a ' and ' d ' where d is degree of freedom.

The critical value against chi squared distribution changes according to the change of the values of a and d.

The table chi squared distribution is given by,

Here we have to find the critical value for the chi - squared statistic with 13 degrees of freedom when a = 0.01.

Therefore, a = 0.01 and d = 13

From the given table we can see that when a = 0.01 and d = 13 the critical value is given by 27.688.

Hence the correct option is (A).

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Answer:

Hi, I believe the answer is p= -6

Step-by-step explanation:

Answer:

4-3p>22=-3p>22-4=-3p>18 multiply both sides of the equation by(-)=3p>-18 divide both sides by 3 =p=-6

d. Dummy coding. Categorical variables need to be converted into numerical variables to be used in regression analysis. Dummy coding involves creating binary variables for each category of the categorical variable.

For example, if the categorical variable is "color" with categories "red," "green," and "blue," dummy coding would involve creating three binary variables: "red" (0 or 1), "green" (0 or 1), and "blue" (0 or 1). These binary variables can then be used in the regression analysis. In conclusion, to use categorical variables in regression analysis, dummy coding is necessary.


In order to use categorical variables in a regression analysis, they must be converted into numerical values. This process is called dummy coding (also known as one-hot encoding). Dummy coding involves creating new binary variables (0 or 1) for each category of the categorical variable. This allows the regression model to incorporate the categorical data while maintaining its numerical nature.

To use categorical variables in a regression analysis, you must apply dummy coding to convert them into numerical values.

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Answer:

Step-by-step explanation:

The (⍺3β3) oligomer of ATP synthase can have 3 different functional conformations.

The (⍺3β3) oligomer of ATP synthase, which consists of three α-subunits and three β-subunits, can exhibit three different functional conformations. These conformations are known as "open," "loose," and "tight" states. The binding change mechanism describes the sequential transition of the catalytic sites within ATP synthase as they alternate between these conformations, facilitating the synthesis of ATP.

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Answer: Evaluate! To solve your equation using the Equation Solver, type in your equation like x+4=5. The solver will then show you the steps to help you learn how to solve it on your own.

Step-by-step explanation: