need some help setting up and solving these equations

Answer: 96 fifth grade students outside for exercise. 48 students playing soccer, 24 students playing basketball, 12 students jogging around the track, and 12 students tossing footballs.

Step-by-step explanation:

Let x be the total number of fifth grade students.

- 1/2x are on the soccer fields

- 1/4x are on the basketball courts

- 1/8x are jogging around the track

- 12 students are tossing footballs

x = 1/2x + 1/4x + 1/8x + 12

x = 4/8x + 2/8x + 1/8x + 12

x = 7/8x + 12

1/8x = 12

x = 12*8

x = 96

Therefore, there are 96 fifth grade students outside for exercise.

Soccer fields: 1/2x = 1/2 * 96 = 48 students

Basketball courts: 1/4x = 1/4 * 96 = 24 students

Jogging around the track: 1/8x = 1/8 * 96 = 12 students

Tossing footballs: 12 students (as given in the problem)

There are 48 students playing soccer, 24 students playing basketball, 12 students jogging around the track, and 12 students tossing footballs.

Answer:

96 students in general

Step-by-step explanation:

I drew an Euler circle to make it more clear. so we can see that 1/8 class = 12

so 1/4 class is 12×2=24

1/2 class is 12×4=48

12+12+24+48=96

I hope this helped

Answer:

Step-by-step explanation:

1

The length of the rectangle is 10 inches and the width is 4 inches.

What is the area of the rectangle?

To find the area of a rectangle, we multiply the length of the rectangle by the width of the rectangle.

Let's assume that the width of the rectangle is "x" inches.

From the given information, we can write an equation for the length "L" in terms of the width "x":

L = 2x + 2

We also know that the area of the rectangle is 40 square inches:

A = L * x = 40

Substituting the expression for "L" in terms of "x" into the area equation, we get:

(2x + 2) * x = 40

Expanding the left-hand side of the equation and simplifying, we get:

2x² + 2x - 40 = 0

Dividing both sides by 2, we get:

x² + x - 20 = 0

This is a quadratic equation that can be factored:

(x + 5)(x - 4) = 0

The solutions are x = -5 and x = 4. Since the width of the rectangle cannot be negative, the only valid solution is:

x = 4

Substituting this value for "x" into the equation for "L", we get:

L = 2x + 2 = 2(4) + 2 = 10

Therefore, the length of the rectangle is 10 inches and the width is 4 inches.

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Answer:

  C  ∫[-a,0] = -∫[0, a]

Step-by-step explanation:

You want an alternate representation of the given integral ...

  ∫(2x⁵ -5x³)dx

on the interval [-a, a].

The function f(x) = 2x⁵ -5x³ being integrated is an odd function. This means ...

  f(-x) = -f(x)   and   f(0) = 0

An even function is characterized by ...

  f(-x) = f(x)

The integral F(x) of this odd function f(x) is an even function, so the parts either side of x=0 have the integrals ...

  [tex]\displaystyle \int_{-a}^0{(2x^5-5x^3)}\,dx=F(0)-F(-a)=F(0) -F(a)[/tex]

  [tex]\displaystyle \int_0^a{(2x^5-5x^3)}\,dx=F(a)-F(0)[/tex]

As we can see, these integrals are the opposites of each other, matching answer choice C.

__

Additional comment

The second attachment shows a numerical value for a=2.

[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill & \$ 50000\\ P=\textit{original amount deposited}\dotfill &\$23000\\ r=rate\to r\%\to \frac{r}{100}\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{quarterly, thus four} \end{array}\dotfill &4\\ t=years\dotfill &7 \end{cases}[/tex]

[tex]50000 = 23000\left(1+\frac{ ~~ \frac{r}{100} ~~ }{4}\right)^{4\cdot 7} \implies \cfrac{50000}{23000}=\left( 1+\cfrac{r}{400} \right)^{28} \\\\\\ \cfrac{50}{23}=\left( \cfrac{400+r}{400} \right)^{28}\implies \sqrt[28]{\cfrac{50}{23}}=\cfrac{400+r}{400} \\\\\\ 400\sqrt[28]{\cfrac{50}{23}}=400+r\implies 400\sqrt[28]{\cfrac{50}{23}}-400=r\implies \stackrel{ \% }{11.25}\approx r[/tex]

1/8

(1/2)^3 1^3 2^3 1/8 or:(1/2)^3 (1/2) (1/2)(1/2)1×1×1/2×2×1/8

Area of the patio is -6x² + x + 2 square yards and perimeter of the patio is 6 - 2x yards.

A yard is a unit of measurement used to measure length or distance in both the US customary system and the British imperial system. One yard is equal to 3 feet or 36 inches. In the US customary system, a yard is equal to 0.9144 meters, while in the British imperial system, it is equal to 0.9144 meters or 3 feet. Yards are commonly used for measuring larger distances, such as in construction or landscaping, as well as in some sports like American football and cricket.

The area of the rectangular patio is given by multiplying its length by its width, so the area is:

A = (1 + 2x)(2 - 3x)

Now using distributive property we get,

A = 2 - 3x + 4x - 6x²

Simplifying further, we get:

A = -6x² + x + 2

Therefore, the area of the patio is described by the quadratic equation -6x² + x + 2.

To find the perimeter of the patio, we add up the lengths of all four sides. The length and width are given as (1 + 2x) and (2 - 3x), respectively, so the perimeter is:

P = 2(1 + 2x) + 2(2 - 3x)

Simplifying this expression, we get:

P = 2 + 4x + 4 - 6x

P = 6 - 2x

Therefore, the perimeter of the patio is described by the linear equation 6 - 2x.

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Starting with the original equation:

-2p - 17 = 3(p - 5)

Distributing the 3 on the right side:

-2p - 17 = 3p - 15

Subtracting 3p from both sides:

-5p - 17 = -15

Adding 17 to both sides:

-5p = 2

Dividing by -5:

p = -2/5

Now, we can substitute this value of p back into the original equation and check if it is a solution:

-2(-2/5) - 17 = 3((-2/5) - 5)

4/5 - 17 = 3(-27/5)

-136/5 = -81/5

The left side does not equal the right side, so the supplied value of p = -2/5 is NOT a solution to the equation.

Hope this helps :)

The measure of the angle that turns through 3/10 of the circle is 108 degrees.

An angle is a geometric figure that is formed by two rays that share a common endpoint, which is called the vertex of the angle. The rays are referred to as the sides or legs of the angle. Angles are typically measured in degrees, with a full circle measuring 360 degrees.

Angles can be classified based on their degree of measurement: acute angles are less than 90 degrees, right angles are exactly 90 degrees, obtuse angles are greater than 90 degrees but less than 180 degrees, and straight angles are exactly 180 degrees.

Since a full circle has 360 degrees, 3/10 of the circle can be represented as:

(3/10) x 360 degrees = 108 degrees

Therefore, the measure of the angle that turns through 3/10 of the circle is 108 degrees.

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The complete question is :

The angle turns through 3/10 of the circle. What is the measure of the angle?

Answer:

2.75

Step-by-step explanation:

When you put that equation into a calculator, you get 2.75.

Answer:

Step-by-step explanation:

To solve for x in the equation 11=4x, we need to isolate x on one side of the equation.

We can start by dividing both sides of the equation by 4:

11/4 = (4x)/4

Simplifying the right side of the equation, we get:

11/4 = x

Therefore, x = 11/4 or 2.75.

The volume of the gas at the height (i.e 6.5 Km) is 652 mL

The final volume of the gas can be obtained by using the Boyle's law equation as shown below:

[tex]P_1V_1 = P_2V_2[/tex]

[tex]1 \times 326 = 0.5 \times V_2[/tex]

[tex]326 = 0.5 \times V_2[/tex]

Divide both side by 0.5

[tex]V_2 = \dfrac{326}{0.5}[/tex]

[tex]\boxed{\bold{V_2 = 652 \ mL}}[/tex]

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Mrs. Jenkins could divide each cookie into six equal pieces, giving each son six pieces of cookies, which would add up to 10 cookies in total.

How to solve the question?

If Mrs. Jenkins gifts 10 cookies to her six sons, the number of cookies each son should get can be found by dividing the total number of cookies by the number of sons.

So, if we divide 10 cookies equally among six sons, we get:

10 / 6 = 1.6667

This means that each son should get approximately 1.67 cookies. However, since it is not possible to divide a cookie into fractions, the actual number of cookies each son would get may vary.

To distribute the cookies equally, Mrs. Jenkins can either give each son one cookie and then divide the remaining four cookies equally among the six sons. This would give each son one cookie and each son would get an additional 4/6 or 0.67 cookies.

Alternatively, Mrs. Jenkins could divide each cookie into six equal pieces, giving each son six pieces of cookies, which would add up to 10 cookies in total.

In any case, the important thing is to ensure that each son receives an equal share of the cookies.

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YOUR COMPLETE QUESTION IS :-

Mrs. Jenkins gifts 10 cookies to her six sons if they share the cookies equally how many cookies should each son get

The mass of the triangular region with density function ρ(x,y) = [tex]x^2 + y^2 is 136/375.[/tex]

A triangle is a three-sided polygon made up of three line segments that connect at three endpoints, called vertices. The study of triangles is an important part of geometry, and it has applications in various fields such as engineering, architecture, physics, and computer graphics.

The mass of a 2D region with variable density can be calculated using the double integral formula:

m = ∬R ρ(x,y) dA

where R is the region of integration, ρ(x,y) is the density function, and dA is the area element.

In this case, we have a triangular region with vertices (0, 0), (4, 0), and (0, 2), and the density function is ρ(x,y) = [tex]x^2 + y^2.[/tex]To set up the double integral, we need to determine the limits of integration for x and y.

Since the triangular region is bounded by the lines y = 0, y = 2, and x = (2/5)y, we can set up the integral as follows:

m = ∫0 ∫[tex]0^[/tex](2/5)y ([tex]x^2 + y^2)[/tex] dxdy

Integrating with respect to x first, we get:

m = ∫[tex]0^2 [(x^3/3) + xy^2]_0^(2/5[/tex])y dy

m = ∫[tex]0^2 [(8/375)y^5 + (4/15)y^3][/tex]dy

Evaluating the integral, we get:

m = [tex][(2/1875)y^6 + (2/5)y^4]_0^2[/tex]

m = (64/1875) + (16/5)

m = 136/375

Therefore, the mass of the triangular region with density function ρ(x,y) = [tex]x^2 + y^2 is 136/375.[/tex]

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Therefore, Postman Builders Inc’s new required rate of return is 23.7%1.

Rate might signify two different things. As a noun, it denotes an amount, frequency, or measure that is typically compared to another quantity or measure. Or, it can be used as a verb to indicate "assign a standard or value to" using a specific scale.

Postman Builders Inc. has a necessary return of 10.2% and a beta of 1.5, according to the information given.

We may get the new necessary rate of return as follows if Postman purchases risky assets that increase its beta by 65% and the predicted inflation rate and inflation premium increase by 2 percentage points.

New Required Rate of Return

= Risk-free rate + Beta * (Expected Market Return - Risk-free rate)

= 2% + (1.5 * (6% + 2% + (65% * 6%))) = 23.7%

New Required Rate of Return equals 8% plus 2.47 x (-2%) to 3.85%.

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Answer: Vertical angles are formed by the intersection of two lines and are always equal in measure. Therefore, to find the angle that is vertical to angle ∠DEB, we need to look for another angle that has the same measure as ∠DEB.

Unfortunately, we do not know the measure of angle ∠DEB, so we cannot determine which angle is vertical to it based on the given information.

Therefore, the correct answer is: None of the angles can be determined as vertical to angle ∠DEB without additional information.

Step-by-step explanation:

Answer:

76°

Step-by-step explanation:

The sum of the interior angles of any quadrilateral is 360°.

p = 360 - 60 - 134 - 90 = 76

Answer:

I got you

Step-by-step explanation:

c-11=25

c=25+11

c=36

Generally, coordinates are a way of specifying the position of something in space, usually using a system of latitude and longitude or x, y, and z axes.

The coordinates of a physical location that serves as a hub for information, such as a data center or a library, then the answer will depend on the specific location you have in mind. To find the coordinates of such a place, you would need to use a mapping tool or geographic information system (GIS) to locate the facility and determine its latitude and longitude.

On the other hand, if you're asking about the "coordinates" of information in a more abstract sense, then this could refer to the ways in which information is organized or classified.

For example, a database might use a system of fields and tables to arrange information in a structured way, while a search engine might use algorithms to determine the relevance and ranking of different pieces of information based on factors like keywords, backlinks, and user behavior.

In conclusion, the coordinates of an information center is dependent on its nature in terms of its structural formation and the set goals to be accomplished by determining such coordinates.

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The total volume of the wall units is 108 cubic feet

The volume of the wall is solved by dividing the figure to give the various dimensions represented in the form length x width x depth

The volume of each is solved then added to get the total volume

first division: 4 x 4 x 8 = 96

second division: 3 x 2 x 2 = 12

The total volume is

= 96 + 12

= 108 cubic feet

so the total volume is solved to be 108 cubic feet

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The total miles drive by Suzy in 18 hours when she can drive 53 miles in 1 hour is equal to 954 miles.

If Suzy can drive 53 miles in 1 hour,

Using the formula of speed based on distance and time we have,

Speed = Distance / Time

Substitute the values in the formula we get,

⇒ Speed = 53 miles / 1 hour

⇒ Speed  = 53 miles/hour

Use this information to find out how far Suzy can drive in 18 hours we get,

Now, Speed =  53 miles/hour

Time = 18 hours

Distance = Speed x Time

Substitute the value of speed and time we get,

⇒ Distance  = 53 miles/hour x 18 hours

⇒ Distance = 954 miles

Therefore, Suzy can drive 954 miles in 18 hours.

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The solution set is {(x, y) | x = y + 2}, which represents a straight line with a slope of 1 passing through the point (2, 0).

Therefore, the correct answer is option 2, infinite solutions.

Equations of the form ax2 + bx + c = 0, where a, b, and c are real numbers, and a 0, are known as polynomial equations in the variable x. Any equation that has the formula p(x) = 0, where p(x) is a polynomial of degree 2 with a single variable, is actually a quadratic equation.

The equation has the following form: ax2 + bx + c = 0, where x is the unknown variable and a, b, and c are constants, with "a" not equal to 0.

Numerous strategies, including factoring, completing the square, and the quadratic formula, can be used to solve quadratic equations.

To solve the system of equations:

x - y = 2 ---(1)

-3x + 3y = -6 ---(2)

We can use the first equation to isolate x in terms of y:

x = y + 2

-3(y + 2) + 3y = -6

Simplifying the equation, we get:

-3y - 6 + 3y = -6

Solving for y, we get:

0 = 0

For all values of y this equation is true-

So,the equations has infinite solutions.

To find the solution set, we can substitute the value of y into the expression for x:

x = y + 2

x = y + 2, for all values of y

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The average height of the soccer team is 77.45 inches, and the average height of the basketball team is 79 inches.

To find the average height of each team, we'll sum up the heights and divide by the number of players on each team.

Soccer team average height:

Sum of heights: 60+61+...+87+88 = 2,246 inches

Number of players: 29

Average height: 2246 / 29 = 77.45 inches

Basketball team average height:

Sum of heights: 72+73+...+86+87 = 1,264 inches

Number of players: 16

Average height: 1264 / 16 = 79 inches

So, the average height of the soccer team is 77.45 inches, and the average height of the basketball team is 79 inches.

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Soccer team heights (in inches):

60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88

Basketball team heights (in inches):

72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87

Jason wants to find more information about the heights of players on his school's soccer team and his school's basketball team. Jason surveys 29 members of the soccer team and 16 members of the basketball team. The heights of the soccer team and basketball team players are given above. What is the average height of the soccer team and the basketball team?

Thus, the total surface area of the given right triangular prism is found as : 96 sq. in.

The bases of a prism, which can have up to n sides, are joined to one another by parallel lines that create planes. These bases plus planes would create right angles with one another in a right prism if they were perpendicular to one another.

surface area of right triangular prism S:

surface area of right triangular prism  = base area + 2*triangle area + 2* rectangle area

surface area of right triangular prism  = 4*8 + 2*(1/2*8*3) + 2*4*5

surface area of right triangular prism   = 32 + 24 + 40

surface area of right triangular prism  = 96

Thus, the total surface area of the given  right triangular prism is found as : 96 sq. in.

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The total volume of glass that makes up the snow globe is approximately 1,757.84 cubic centimeters.

What is the inner sphere?

The Inner Sphere is a region of interstellar space surrounding Earth to a radius of roughly 450 - 550 light-years, generally demarcated by the outer borders of the "Great Houses."

The outer sphere has a diameter of 30 cm, so its radius is 15 cm. The volume of the outer sphere is given by the formula:

V outer = (4/3)πr_outer³

V outer = (4/3)π(15 cm)³

V outer ≈ 14,137.17 cm³

The inner sphere has a diameter of 30 cm minus the thickness of the glass on both sides, so its diameter is:

30 cm - 2(0.35 cm) = 29.3 cm

Therefore, the radius of the inner sphere is:

r inner = 29.3 cm / 2 = 14.65 cm

The volume of the inner sphere is given by the formula:

V inner = (4/3)πr_inner³

V inner = (4/3)π(14.65 cm)³

V inner ≈ 12,379.33 cm³

Finally, the volume of glass that makes up the snow globe is the difference between the volumes of the outer and inner spheres:

V glass = V outer - V inner

V glass ≈ 1,757.84 cm³

Therefore, the total volume of glass that makes up the snow globe is approximately 1,757.84 cubic centimeters.

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Answer:

42, 41, 123

Step-by-step explanation:

3, 2, 6, 5, 15, 14

- 1 x3. - 1. x3. - 1

you just gotta look for the pattern thats the same in the sequence so the next three numbers would be x3, then - 1 then x3 again onto the numbers.

Answer:

The next three numbers are 42, 41, and 123

Step-by-step explanation:

3 - 1 = 2

2 * 3 = 6

6 - 1 = 5

5 * 3 = 15

15 - 1 = 14

The pattern is subtracting one and then multiplying by three.

14 * 3 = 42

42 - 1 = 41

41 * 3 = 123

According to the informations,  there are 7 different ways a committee of six people can be selected from a group of seven candidates.

In this case, we must use the combination formula, which is expressed by:

Where n is the total number of items in the set, r is the number of items being selected, and ! denotes the factorial function, which means multiplying a number by all the positive integers less than it.

Therefore, from a group of 7 candidates, a committee of 6 people can be selected in 7 different ways using the combination formula. The formula for the combination of n objects taken r at a time is C(n,r) = n!/r!(n-r)!, where n is the total number of objects and r is the number of objects to be chosen. In this case, we have n = 7 and r = 6, so the formula gives us C(7,6) = 7!/6!(7-6)! = 7 ways.

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The closest option among the given options is option B: 120 units².

What is cylinder?

A cylinder is a three-dimensional geometric shape that consists of two parallel circular bases of the same size and shape, and a curved lateral surface connecting the bases.

The formula for the surface area of a right cylinder is:

SA = 2πr² + 2πrh

where r is the radius and h is the height.

Substituting the given values, we get:

SA = 2π(4)² + 2π(4)(11)

SA = 2π(16) + 2π(44)

SA = 32π + 88π

SA = 120π

Using the approximation π ≈ 3.14, we can calculate the surface area to be:

SA ≈ 120(3.14)

SA ≈ 376.8

Therefore, the closest option among the given options is option B: 120 units².

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The slope-intercept form of a linear equation with given point (-9,-5) and slope -2/3 is y = (-2/3)x - 11.

The slope of a line is a measure of its steepness or incline, represented by the ratio of the vertical change between two points, known as the rise, to the change in horizontal part between the same two points, known as the run. It describes the rate at which the line is increasing or decreasing as it moves from left to right. The slope of a line can be positive, negative, zero, or undefined, and it plays a critical role in many mathematical applications, including calculus, geometry, and physics. It is commonly denoted by the letter m and is defined as m = (y₂ - y₁)/ (x₂ - x₁), where (x₁, y₁) and (x₂, y₂) are any two points on the line.

The slope-intercept form of a linear equation is y = mx + b, where m represents the slope of the line and b represents the y-intercept.

To find the equation of a line with a given slope and a point on the line, we can substitute the values into the equation and solve for the y-intercept, b.

Given that the line passes through the point (-9, -5) and has a slope of -2/3, we can substitute these values into the equation to find the value of b:

-5 = (-2/3) × (-9) + b

-5 = 6 + b

b = -11

Now that we know the value of b, we can write the equation of the line in slope-intercept form:

y = (-2/3)x - 11

Therefore, the equation of the line in slope-intercept form is y = (-2/3)x - 11.

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This line is the horizontal line y = 1. Therefore, the correct answer is "Reflection across y = 1".

How to solve the question?

The line of reflection is the line that serves as the mirror for the original polygon such that each point on the original polygon is reflected to a corresponding point on the reflected polygon such that the distance between the line of reflection and each point is the same as the distance between the line of reflection and its reflection.

In this case, we are given two polygons, one original and one reflected. We need to determine the line of reflection that maps each point of the original polygon to its corresponding point on the reflected polygon.

Looking at the two polygons, we can see that the corresponding vertices are equidistant from a line of reflection that passes through the midpoint of the line segment joining V and V prime. Therefore, the line of reflection is the line that passes through the midpoint of the line segment joining V and V prime.

This line is the horizontal line y = 1. Therefore, the correct answer is "Reflection across y = 1". The other options are incorrect because they do not pass through the midpoint of the line segment joining V and V prime and do not produce the corresponding points for the original and reflected polygons.

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Answer:

251.2 in

Step-by-step explanation:

Circumference of circle = 2 · π · r

π = 3.14

r = 40 in

Let's solve

2 · 3.14 · 40 = 251.2 in

So, the circumference of the circle is 251.2 in