the cost to make 1 pie is 4$. the amount earned on each pie sold at the pie sale is 125% of the cost if the pie. The total amount earned at the pie sale will be donated. How many pues must be sold to donate a total amount if $300?

The number of half dollars coins are 5 and the number of the quarters dollars coins are 12.

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

You have a cup with 17 coins inside.

The total inside the cup is $5.50.

Let x be the number of half dollars and y be the number of the quarters dollars.

Then the equations will be

             x + y = 17  ............1

0.5x + 0.25y = 5.5 ...........2

By solving equations 1 and 2, we have

x = 5 and y = 12

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Let numbers be a and b

Adding both

\(\\ \qquad\quad\sf\longmapsto 2a=24\)

\(\\ \qquad\quad\sf\longmapsto a=\dfrac{24}{2}\)

\(\\ \qquad\quad\sf\longmapsto a=12\)

\(\\ \qquad\quad\sf\longmapsto 12-b=9\)

\(\\ \qquad\quad\sf\longmapsto b=12-9\)

\(\\ \qquad\quad\sf\longmapsto b=3\)

Answer:

19 over 50

20/50 = 40%.

40% - 2% = 38% (19/50)

Solution = 19 over 50

Hope this helps!

Answer: 1134.11

A=3.14*r^2

Step-by-step explanation:

Answer:

a ≈ 1134.11 cm2

Step-by-step explanation:

The formula:

\(a=\pi r^{2}\)

\(a=\pi (19)^{2} =361\pi\)

\(a=1134.11cm^{2}\)

Hope this helps

Answer:

yeah same it really could be

Answer:

13,000

Step-by-step explanation:

Hope this helps! :)

Answer:

13000

Step-by-step explanation:

2 x 65 =130

Add 2 more 0s

Answer: 3

Step-by-step explanation: This is the average between your 2 numbers, 4 and 2.

Answer: its 2

Step-by-step explanation: i guessed and i got it right after this other dud said 3....ITS 2

Answer:

Step-by-step explanation:

\(\dfrac{1}{256^{-4}}=256^4\)

because for a real and n integer

\(a^{-n}=\dfrac{1}{a^n}\)

take n = -4, so -n = 4,  and a =256

thanks

Answer:

Step-by-step explanation:

Let the number be n

The statement

the difference of a number and eight is written as

n - 8

It's multiplied by 6

That's

6( n - 8)

The result is 12

So we have the final answer as

Hope this helps you

Answer:

0

Step-by-step explanation:

Since the line is horizontal and it isn't moving up or down and is in a still motion, the slope would be 0.

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Given:

we will use the synthetic division to divide f(x) by (x+2) so,

The answer will be as shown in the following picture

So, we will write the answer in the form (x-c)q(x) + r

so, the answer will be option 3

The Answer:

Width = 6

Step-by-step explanation:

Let width be w

(3w + 8) x w = 156

3 \(w^{2}\) x 8n - 156 = 0

(w + 8 x 6) (w-6) = 0

w = 6

Answer:

DEC is 30°

because 180° - 50° would be 40°

The point-slope form if the coordinates are (-1,1) and (1,-1)

\( \frac{ - 1 - 1}{1 - ( - 1)} = \frac{ - 2}{1 + 1} = \frac{ - 2}{2} = - 1\)

y = ax + b = ( - 1 )x + b = - x + b < i guess>

Ok done. Thank to me :>

analyze problem

make system of equations

5x+3y=21

6x+4y=26

using elimination:

x=3,y=2

9514 1404 393

Answer:

  200 m

Step-by-step explanation:

Let d represent the length of the track in meters. The relation of interest is ...

  time = distance/speed

Then the total time to run and walk back is ...

  60 = d/10 + d/5

  600 = d + 2d

  200 = d . . . . . . . divide by 3

The length of the track is 200 meters.

_____

200 m in 20 seconds is a world-record time for a woman; a very good time for a man.

Answer:

Step-by-step explanation:

Based on the information provided, the residual plot makes sense based on the scatter plot.

In the given scatter plot, the points are plotted with horsepower on the x-axis and observed MPG (miles per gallon) on the y-axis. The scatter plot shows the relationship between horsepower and MPG for the motorcycles.

The residual plot, on the other hand, shows the differences between the observed MPG values and the predicted MPG values based on the regression line or model. Residuals represent the vertical distances between the observed data points and the regression line.

Looking at the residual plot, we can see that the residuals are scattered randomly around the zero line. Some residuals are positive, while others are negative, indicating that the observed MPG values deviate both above and below the predicted MPG values.

Given this information, option A is the correct answer: "The random residual plot makes sense because the scatter plot appears to have a linear relationship." The scatter plot does not necessarily suggest a positive or negative relationship between horsepower and MPG. It simply shows the general trend or pattern. The random distribution of residuals in the residual plot indicates that the regression model is capturing the relationship adequately, and the variations or deviations from the regression line are random, which is expected in a good regression model.

The residual plot created by Jorge does make sense as it reflects the negative relationship between horsepower and miles per gallon present in the original scatter plot. As the horsepower increases, the miles per gallon decreases which is depicted accurately in the residual plot made.

The best answer for this is B. The random residual plot makes sense because the scatter plot appears to have a negative relationship. A residual plot is a graph that is used to examine the goodness of fit in regression and ANOVA analysis. It is the differences between the observed and predicted values of data. The points in a residual plot are randomly dispersed around a horizontal axis if the corresponding regression model is appropriate for the data.

In this case, the scatter plot demonstrates a negative relationship between the horsepower of motorcycles and miles per gallon. As the horsepower increases, the miles per gallon decrease. This negative relationship is reflected in the pattern of residuals, which fluctuates around the zero line on the y-axis of the residual plot. Consequently, the random distribution of residuals on Jorge's plot does make sense given the scatter plot data.

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Answer: x<-7

Step-by-step explanation:

4-(x+2)<-3(x+4)

4-x-2<-3x-12

4-2-x<-3x-12

2-x<-3x-12

14-x<-3x

14<-2x

-2x>14

-x>7

x<-7

The meaning of \(\( \mathbb{N}=\bigcap \left \{X:X inductive \right \}\) is that the set of natural numbers is the intersection of all inductive sets.

The set of natural numbers is inductive because it satisfies both of these conditions. The set is non-empty because it contains the number 1. And if x is a natural number, then x+1 is also a natural number.

In other words, a set is inductive if it satisfies the following two conditions:

The concept of an inductive set is important in mathematics because it allows us to define the set of natural numbers.

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Answer:

The second choice.

Step-by-step explanation:

Answer:

Step-by-step explanation:

At compound interest, the amount in the account will be:

Principal, P=$3,300

Interest rate = 3¾% =0.0375

Time = 1 month

Therefore, the amount in her account after a month will be:

• Her new balance =$3310.31

The amount of interest earned in 1 month = $3310.31 -3300 =$10.31

Answer:

3.141592654...

Step-by-step explanation:

it just keeps going and going and never stops.

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To complete the job in 12 days, they need 100 workers.

We know that 30 workes can complete 1 job in 40 days, then if each worker works at a rate R, then we can write:

30*R*40 days = 1 job

R = (1/1200) job/day

Then if they need to complete the job in 12 days, the number N of workers needed is:

N*(1/1200)*12 = 1

N = (1200/12) = 100

100 workers are needed.

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Using the Factor Theorem, the polynomials are given as follows:

1. \(P(x) = x^5 + 2x^4 - 7x^3 + x^2\)

2. \(P(x) = 0.8(x^4 - 4x^3 - 16x^2 + 64x)\)

3. P(x) = -0.1(x³ - 4x² - 3x + 18)

The Factor Theorem states that a polynomial function with roots \(x_1, x_2, \codts, x_n\) is given by:

\(f(x) = a(x - x_1)(x - x_2) \cdots (x - x_n)\)

In which a is the leading coefficient.

Item a:

The parameters are:

\(a = 1, x_1 = x_2 = 1, x_3 = x_4 = 0, x_5 = -4\)

Hence the equation is:

P(x) = (x - 1)²x²(x + 4)

P(x) = (x² - 2x + 1)(x + 4)x²

P(x) = (x³ + 2x² - 7x + 1)x²

\(P(x) = x^5 + 2x^4 - 7x^3 + x^2\)

Item b:

The roots are:

\(x_1 = x_2 = 4, x_3 = 0, x_4 = -4\)

Hence:

P(x) = a(x - 4)²x(x + 4)

P(x) = a(x² - 16)x(x - 4)

P(x) = a(x³ - 16x)(x - 4)

\(P(x) = a(x^4 - 4x^3 - 16x^2 + 64x)\)

It passes through the point x = 5, P(x) = 36, hence:

45a = 36.

a = 4/5

a = 0.8

Hence:

\(P(x) = 0.8(x^4 - 4x^3 - 16x^2 + 64x)\)

Item 3:

The roots are:

\(x_1 = x_2 = 3, x_3 = -2\)

Hence:

P(x) = a(x - 3)²(x + 2)

P(x) = a(x² - 6x + 9)(x + 2)

P(x) = a(x³ - 4x² - 3x + 18)

For the y-intercept, x = 0, y = -1.8, hence:

18a = -1.8 -> a = -0.1

Thus the function is:

P(x) = -0.1(x³ - 4x² - 3x + 18)

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Answer:

12.25

Step-by-step explanation:

3.5*3.5=12.25

Answer:

12.25m^2

Step-by-step explanation:

3 1/2 × 3 1/2

3 1/2 is equivalent to 7/2

7/2 × 7/2= 49/4

this simplifies to 12.25

answer: 12.25 m^2