Sebastian has xx nickels and yy pennies. He has at least 20 coins worth at most $0.65 combined. Solve this system of inequalities graphically and determine one possible solution.

The cost of one day-Lilly is found to be $4 and the cost of one geranium is found to be $8. Therefore, Paul spent about $16 for day-Lilly and $56 for geranium. And Megan spent about $40 for day-Lilly and $88 for geranium.

Two or more algebraic equations that have a common variable and are solved simultaneously are referred to as simultaneous equations. We can find the answers to both unknowns if we have two separate equations with the same two unknowns in each. Here, we'll employ the addition-and-subtraction or elimination method.

Let's consider the cost of day-Lilly as x and the cost of geranium as y. The cost spent by Paul is written as 4x+7y=$72 and Megan is written as 10x+11y=$128.

Solving these two equations for x and  y,

[tex]\begin{aligned}40x+70y = \$720\\\underline{40x+44y=\$512}\\26y=\$208\\y=\$8 \end{aligned}[/tex]

Substitute the value of y in equation 4x+7y=$72 to get the value of x,

[tex]\begin{aligned}4x+7(8)&=\$72\\4x&=\$16\\x&=\$4\end{aligned}[/tex]

The answers are $4 and $8.

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Answer:

x = 3

Step-by-step explanation:

4 + x = 7  Subtract 4 from both sides of the equation

4 - 4 - x = 7 - 4  Simplify

x = 3  X equals 3

Answer:

x = 3

Step-by-step explanation:

4 + x = 7

x + 4 - 4 = 7-4 = 3

x = 3

To solve for x, subtract 4 from both side of the equation.  This leaves x by itself on the left side of the equation.  Next subtract 4 from 7 to get the solution, x = 3.

The probability sum of the dice is 2/11.

Let A be the event that the sum of dots is 5, then

A={(1,4), (2,3), (3,2), (4,1)}

n(A)=4

And, B is the event that one die shows a "one"

B={(1,1), (1,2), (1,3), (1,4), (1,5), (1,6), (2,1), (3,1), (4,1), (5,1), (6,1)}

n(B)=11

The Event that some of the dots are five and one of the die shows "one".

A intersection B = {(1,4), (4,1)}

Since n(A) = 36 (thirty-six possible samples of two dice)

P(A)=4/36

P(B)=11/36

P(A intersection B)=2/36

So, the required probability is

P(A|B)=P(A intersection B)/P(B) =2/11

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Answer:

y=3/4x-9/2

Step-by-step explanation:

y=mx+c

m=dy/dx

=-3/-4

=3/4

-3=(3/4*2)+c

-3=3/2+c

-9/2=c

The line of reflection and the image of after reflection graph is attached below  

What is line of reflection ?

The picture is consistent with the preimage when reflecting a figure in a line or a point. Every point on a figure is translated into an image by a reflection across a set line. The term "line of reflection" refers to the fixed line.

The line of reflection is a line across which an image will reflect. Every point in a figure is said to reflect the other figure if and only if it is equally spaced from every corresponding point in the other figure. The image that is reflected should be identical in size and shape but face the opposite way.

Graph the quadrilateral. By inspection, you can tell where the midpoint is. (see attachment 1)

Now, I'll draw a line through it. (see attachment 2)

To reflect across a line, think about the points traveling across the line the same number of spaces the point is from the line. For example, point A is three away from the line. So, A' will be 3 away from the other side. The coordinates will be at (-3,2). (see attachment 3).

Do the same for the other points, and you'll have your image.

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Area of the walk that goea around the rectangular yard is 680 sq. ft.

A quadrilateral with parallel sides that are equal to one another and four equal vertices is known as a rectangle. It is also known as an equiangular quadrilateral for this reason.

Rectangles can also be referred to as parallelograms since their opposite sides are equal and parallel.

The rectangle's characteristics are listed below:

Dimension of the yard is

width = 40 ft

length = 53ft

Dimension of the yard without the walkway is

Width =40 - 4*2 = 40 - 8 = 32 ft

Length = 53 - 4*2 = 53 - 8 = 45 ft

Area of the yard = Width * Length = 40 * 53 = 2120 sq. ft

Area of the yard wtihout the walk = 32 * 45 = 1440 sq. ft

Therefore the area of the walk is = Area of yard - Area of yard without walk = 2120 = 1440 = 680 sq. ft.

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Answer:

3x²

= 3(10)²

= 3(100)

= 300

Step-by-step explanation:

Answer:

You buy the following from Walmart:

1 puzzle for $8, 1 TV for $350, 1 cutting board for $9, and 1 blender for $25

You have a 10% off coupon,  

What is the new Subtotal:

Sales tax is 5%: $

What is the total:

Step-by-step explanation:

Answer:

2 < x < 26

Step-by-step explanation:

The length of the side of a triangle must be less than the sum of the lengths of the other two sides of a triangle.
Therefore:

12+14>x

x<26

However, the following must also be true:

x+12>14 (The sum of x and 14 will always be greater than 12 because 14>12, so we don’t need to include that in the inequality)

So, x>2.
This means that the answer is 2<x<26

Answer: x = 2 hours y= 7 hours = 9 hours a week, 80$ a week

Step-by-step explanation:

5$x2=10$   10$x7=70$ 70$ + 10$ = 80 $.

hopefully, maybe that helps for the first question.

Answer:

9 $50 bills and 6 $20 bills

Step-by-step explanation:

Let f = number of $50 bills.

Let t = number of $20 bills.

f + t = 15

50f + 20t = 570

f = 15 - t

50(15 - t) + 20t = 570

750 - 50t + 20t = 570

-30t = -180

t = 6

f + t = 15

f + 6 = 15

f = 9

Answer: 9 $50 bills and 6 $20 bills

Answer:

See the picture below

Step-by-step explanation:

You start from the center given (-7,-6),  then count how many spaces from the center to that point.  Take that number and triple it to find the new point.  I drew lines so that you could see the path of two of the points.  

The path that I did not draw was from the point (-3,-2).  If you start at (-7,-6) you will have to move 4 spaces to the right and 4 spaces up to get to (-3,-2)  Now triple that.  You will move 12 spaces to the right and 12 spaces up for the new point of (5,6)

If the function f(x) = |x-5| + 2, then the value of f(3) is 4

The function

f(x) = |x-5| + 2

The function is defined as the mathematical statement that shows the relationship between the independent variable and the dependent variable. The function consist of different variables, numbers and mathematical operators

Here the function consist of the absolute value symbol.

|-a| = a

The absolute value of the positive and the negative number will be always positive.

The function is f(x) = |x-5| + 2

Then,

f(3) = |3-5| + 2

= |-2| + 2

= 2 + 2

= 4

Therefore, the value of f(3) is 4

I have answered the question in general, as the given question is incomplete

The complete question is:

If f(x)=|x−5| + 2, find the value of f(3).

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The range of the function f(x) = |x| + 7 is given by the option presented as follows:

7 ≤ y < ∞.

The range is composed by the set containing all the values assumed by the output of the function, that is, all the numeric values assumed by the function.

In the context of this problem, the function is defined as follows:

f(x) = |x| + 7.

The parent function is the absolute value function g(x) = |x|, which gives the distance of a point x from the origin, assuming real values of at least 0, as a distance cannot be negative.

The addition by 7 means that the parent function was translated up seven units, meaning that the minimum value assumed by the range is seven, and the range of the function is given by the last option given as follows:

7 ≤ y < ∞.

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Answer:

Hey, answer is attached.

Step-by-step explanation:

Hope this helps.

The proportion of people who never had a cavity is 0.92.

A ratio is a comparison between two similar quantities in simplest form.

Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.

In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.

Given,  8% of adults have never had a cavity. A dental graduate student contacts an srs of 1000 adults.

8% of 1000 is,

= (8/100)×1000.

= 80.

Now, The proportion of people who never had a cavity is (1000 - 80)/100.

= 920/1000.

= 92/100.

= 0.92 proportion of people never had a cavity.

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Answer:

a = 120 cm2

Step-by-step explanation:

The prism has 5 sides:

2 triangles, base: 3 hight: 4, each

3 rectangles, 3x9, 5x9 and 4x9

Add the areas on each side to the total area:

[tex]a=(2)\frac{(3)(4)}{2} +(3)(9)+(5)(9)+(4)(9)=12+27+45+36[/tex]

[tex]a=120cm^{2}[/tex]

Hope this helps

The solution to the inequality statement is x < 3/16

From the question, we have the following parameters that can be used in our computation:

negative one eighth is less than the product of negative two thirds and a number.

Express as numbers and operators

So, we have

-1/8 < -2/3x

Divide both sides by -2/3

So, we have the following representation

1/8* 3/2 > x

Evaluate the produdts

3/16 > x

Rewrite as

x < 3/16

Hence, the solution is x < 3/16

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Answer:

Step-by-step explanation:

a because if you divide  everything under the fraction number you get answer a

The solution for the given expression is x = 4³/₅. The correct option is B.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the expression is x - 17⁴/₅ = -13¹/₅. The given expression will be solved as,

x - 17⁴/₅ = -13¹/₅

x = 17⁴/₅ -13¹/₅

x = 89 / 5 - 66 / 5

x = 23 / 5

x = 4³/₅

The expression will be equivalent to x = 4³/₅.

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Answer: They lose $250000 per year over the three years!

Step-by-step explanation:

First, find the total profit for the two following years

Take $625000 times 2 = $1250000

Next, find the total they made in 3 years

Take -$2000000 of the first year + $1250000 = - $750000

Now we find their average profit per year

Take -$750000 divided by 3 = -$250000

They lose $250000 per year over the three years

Answer:

5x^2 - 40x

Step-by-step explanation:

5x (x-8)

5x^2 - 40x

Answer:

1

Step-by-step explanation:

because you can only cut it in a certain way that both pieces are the same measurements

The coordinate of the vertex B after the transformation of the given trapezoid is (-2, 2).

The graph of a function can be transformed by either shifting it in the right, left, up or down.

When the transformation is rightwards, the function becomes as f(x - a).

For left shifting it is f(x + a).

As per the given graph, the coordinate of vertex B is (-5, 4).

After the translation (x, y) → (x + 3, y - 2), the new coordinate can be obtained as,

(-5, 4) → (-5 + 3, 4 - 2)

⇒ (-2, 2)

Hence, the coordinate of B after the transformation is (-2, 2).

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The equation of the line is y = -3x + 2.

What is the slope of a line?

A line's slope in mathematics is defined as the ratio of the change in the y coordinate to the change in the x coordinate.

Both the net change in the y-coordinate and the net change in the x-coordinate are represented by Δy and Δx, respectively.

As a result, m = change in y/change in x = Δy/Δx is the formula for the change in y-coordinate with respect to the change in x-coordinate.

where "m" represents a line's slope.

Given that, the line passes through the point (-1,5) with slope of -3.

The equation of line passes through (x₁, y₁) with slope m is

y -  y₁ = m(x - x₁)

Putting x₁ = -1, y₁ = 5 and m = -3.

y - 5 = -3(x - (-1))

y - 5 = -3x - 3

y = -3x  + 2

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Answer:   The written description of x - 14 is given as the difference of variable x and integer 14 gives x -14.

Step-by-step explanation:

Calculate the answer using a math operator is referred to as a mathematical operation.

Basic mathematical operations are addition, multiplication, subtraction and division.

Let x be a variable,

And 14 is an integer.

By using mathematical operations,

The difference of x and 14 can be given as,

x - 14.

Random sampling methods of assigning probabilities is used when we are dealing with sampling.

Random sampling is a method of assigning probabilities used when dealing with samples of a population. It involves randomly selecting a sample from the population and then using that sample to estimate the probabilities of different outcomes. This is done by calculating the proportion of the sample that falls into each category. For example, if you are trying to determine the probability of a certain outcome, you would randomly select a sample from the population and then count how many of the individuals in the sample fall into that category. The probability of the outcome would then be calculated by dividing the number of individuals in that category by the total number of individuals in the sample.

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Answer: no solution

Step-by-step explanation:

1. distribute through both sides to get 3x-6+1 ≥ x+2x+4

2. then combine like terms to get 3x-5 ≥ 3x+4

3. then make sure like terms are together on either side -> 3x -3x ≥ 4+5 ->

4. since the 3x-3x = 0, there are no solutions

The percentage of those that don't travel by car will be 44%.

It's important to note that a percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100.

In this case, 14 students travel by car and 11 don't travel by car. The total number of students will be:

= 11 + 14.

= 25

Therefore, the percentage of those that don't travel by car will be:

= 11 / 25 × 100

= 44%

The percentage is 44%.

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The height increases by 0.48  meters each year.

The available regression equation is: Predict height= 0.29 + 0.48 (age).

Here, the predict height is dependent variable and the  age is in-dependent variable.

Intercept = 0.29

Slope      = 0.48

The given regression equation indicates the y on x model and the intercept coefficients of the regression equation is 0.29 and the slope is 0.48.

The height increases, an average, by 0.48 m per year.

Because co-efficient of slope variable indicate the positive sign and we increase 1 year in age then automatically height increased is 0.48 m.

The height increases, on average, by 0.48 meter each year.

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The available regression equation is: Predict height= 0.29 + 0.48 (age).

Here, the predict height is dependent variable and the  age is in-dependent variable.

Intercept = 0.29

Slope      = 0.48

The given regression equation indicates the y on x model and the intercept coefficients of the regression equation is 0.29 and the slope is 0.48.

Answer:

12.9 or 12 9/10

Step-by-step explanation:

4 3/10 or 4.3 x 3

12.9 or 12 9/10