2 of 3
Some people took part in a game. The frequency shows information about their scores.
Score
1-7
8-10
11-15
16-20
21-35
36-50
Estimate the mean.
Give your answer rounded to 2 decimal places.
Frequency
13
1
19
20
19
20

The soy candles cost $12.83 each and the specialty candles cost $10.72 each then the Asunta's Candle Store ordered 293 soy candles and 457 specialty candles.

What is system of linear equations?

Let's use the following variables:

We have two equations based on the information given in the problem:

To solve for x and y, we can use a system of linear equations. One way to do this is to solve for one variable in one equation, and substitute that expression into the other equation. For example, we can solve for x in the first equation:

x + y = 750

x = 750 - y

Then we substitute this expression for x in the second equation:

12.83x + 10.72y = 8660.34

12.83(750 - y) + 10.72y = 8660.34

Simplifying and solving for y:

9622.5 - 2.11y = 8660.34

-2.11y = -962.16

y = 456.5

We can then substitute this value for y in the first equation to find x:

x + y = 750

x + 456.5 = 750

x = 293.5

Therefore, Asunta's Candle Store ordered 293 soy candles and 457 specialty candles.

Learn more about system of linear equations click here:

https://brainly.com/question/24085666

#SPJ1

The side of the triangle from shortest to longest can be arranged as,

A triangle is a polygon with three sides such that the sum of all the interior angles is always 180°.

In a triangle, the side opposite to the biggest angle is always the lengthiest, while the side opposite to the smallest angle is the shortest.
Given that the measure of ∠A is 100°, therefore, the length of the side BC will be the lengthiest.
Also, the measure of ∠B is 20°, therefore, the length of the side AC will be the shortest.

Hence, BC > AB > AC.

Learn more about Triangles here:

https://brainly.com/question/2773823

#SPJ1

Answer:

24 edges, on the 10 faced prism

The least amount of money needed to purchase exactly 20 standard-sized lemons is $1.50, by buying three bags of 6 lemons each and two individual lemons.

What is Combination?

In mathematics, a combination is a way of selecting items from a larger set without regard to the order in which the items are selected. In other words, a combination is a selection of a subset of items from a larger set, where the order of the selected items does not matter.

The number of possible combinations of r items selected from a set of n items is denoted by the notation C(n, r), or sometimes written as nCr. The formula for calculating the number of combinations is:

                      C(n, r) = n! / (r! * (n - r)!)

To purchase exactly 20 standard-sized lemons at Joe's Fruit Stand, we need to find the combination of bags of lemons that adds up to a total of 20. We want to minimize the cost, so we should choose the combination of bags with the lowest cost.

One possible combination is to buy two bags of 12 lemons each, for a total of 24 lemons, and then discard 4 lemons. This would cost $2.10 x 2 = $4.20.

Another possible combination is to buy three bags of 6 lemons each, for a total of 18 lemons, and then buy two individual lemons for a total of 20 lemons. This would cost $0.30 x 3 + $0.30 x 2 = $1.50.

Therefore, the least amount of money needed to purchase exactly 20 standard-sized lemons is $1.50, by buying three bags of 6 lemons each and two individual lemons.

Learn more about combination click here:

https://brainly.com/question/11732255

#SPJ1

The percent error in Rashida's measurement while measuring the length of the beam is 4.29%.

What is meant by percent error?

The percent error is the distinction between the estimated value and the actual value in relation to the actual value. Percent errors show the magnitude of our measurement errors during an analysis procedure. We are getting close to the accepted or original value when the percent mistakes are smaller. The relative error is multiplied by 100 to get the percent error.

Given,

  The actual length of beam = 17 and 1/2 feet = 17.5 feet

The measured length of beam = 16 and 3/4 feet = 16.75 feet

The formula to find the percent error is as follows:

Percent error = [tex]|\frac{Measured\ value - Actual\ value}{Actual\ value} | * 100[/tex]

                   =  [tex]|\frac{16.75 - 17.5}{17.5} | * 100 =[/tex] 0.75/17.5 * 100 = 4.29%

Therefore the percent error in Rashida's measurement while measuring the length of the beam is 4.29%.

To learn more about percent error, follow the link.

https://brainly.com/question/1600371

#SPJ1

Answer:

Step-by-step explanation:

y=2+x

1m per second.

2+1x=2+x=y

find the relational column formula.

Answer:

55

Step-by-step explanation:

Since 1 rectangle is 10 and there are 5, that means the whole length is 50.

Which means with can set the equation equal to 50

[tex]x - 5 = 50[/tex]

Adding 5 gets us

[tex]x = 55[/tex]

31 people chose Petra as leader in the student council elections.

Percentage is used to represent a fraction of 100.

Percent is represented by the sign "%".

Mathematically, we can write the percentage as -

A% of B

(A/100) x B

AB/100

Given is that in the student council elections, 39% of the 80 voters chose Petra.

We can find the total number people who chose Petra as leader as -

{x} = 39% of 80

{x} = (39/100) x 80

{x} = 31.2

{x} = 31

Therefore, 31 people chose Petra as leader in the student council elections.

To solve more questions on percentage, visit the link below

https://brainly.com/question/29541337

#SPJ9

{Question in English -

In the student council elections, 39% of the 80 voters chose Petra. How many optical votes Petra?}

a) The electric field magnitude on the balloon surface will be different from the electric field magnitude on the box surface.

b) the electric field lines intersect with the planar surface of the box, the field lines will be compressed or spread out depending on the angle of incidence.

At the point of contact between the spherical balloon and the wall of the cubical box, the electric field magnitude will not be the same on both surfaces. This is because the surface of the balloon is spherical, while the surface of the box is planar. The electric field lines emanating from the charged ball will be spherically symmetric around the ball and perpendicular to the surface of the balloon. However, when the electric field lines intersect with the planar surface of the box, the field lines will be distorted due to the change in direction of the surface. As a result, the electric field magnitude on the balloon surface will be different from the electric field magnitude on the box surface.

At the point of contact, the number of field lines per unit area will also be different for the balloon surface and the box surface. The electric field lines from the charged ball will be distributed uniformly over the surface of the spherical balloon, so the number of field lines per unit area will be constant over the entire surface. However, when the electric field lines intersect with the planar surface of the box, the field lines will be compressed or spread out depending on the angle of incidence. Therefore, the number of field lines per unit area on the box surface will not be the same as the number of field lines per unit area on the balloon surface.

Learn more about electric field here https://brainly.com/question/8971780

#SPJ4

Question:

A small charged ball is suspended at the center of a spherical balloon that is nestled snugly inside a cubical cardboard box. On one side, the balloon touches the wall of the box. (a) At this point of contact, is the electric field magnitude on the balloon surface equal to the electric field magnitude on the box surface? Assume neither object is polarized. (b) At this point of contact, is the number of field lines per unit of balloon surface area equal to the number of field lines per unit of box surface area?

There are 180 different starting lineups that can be created for the college team.To find the number of different starting lineups that can be created for the college team, we need to use the combination formula.

The number of ways to choose k items from a set of n distinct items is given by the formula:

nCk = n! / (k! * (n-k)!)

where "!" denotes the factorial function, which means the product of all positive integers up to that number.

In this case, we want to choose 2 guards out of 5, 2 forwards out of 4, and 1 center out of 3. So the total number of different starting lineups that can be created is:

(5C2) * (4C2) * (3C1)

= (5! / (2! * 3!)) * (4! / (2! * 2!)) * (3! / (1! * 2!))

= (10) * (6) * (3)

= 180

Therefore, there are 180 different starting lineups that can be created for the college team.

To learn more about combination:

https://brainly.com/question/29794165

#SPJ4

The standard deviation of the data set is  0.7.

First, calculate the mean of the data set:

(mean) = (2+1+1+2+2+3)/6 = 11/6 ≈ 1.8

Next, calculate the deviation of each data point from the mean:

2 - 1.8 = 0.2

1 - 1.8 = -0.8

1 - 1.8 = -0.8

2 - 1.8 = 0.2

2 - 1.8 = 0.2

3 - 1.8 = 1.2

Now square each deviation:

0.2² = 0.04

(-0.8)² = 0.64

(-0.8)² = 0.64

0.2² = 0.04

0.2² = 0.04

1.2² = 1.44

The sum of the squared deviations is:

0.04 + 0.64 + 0.64 + 0.04 + 0.04 + 1.44 = 2.84

To find the variance, we divide by the number of data points:

variance = 2.84/6 ≈ 0.4733

Finally, take the square root of the variance to get the standard deviation:

standard deviation = √(0.4733) ≈ 0.69

Therefore, the standard deviation of the data set {2,1,1,2,2,3} is approximately 0.7 (rounded to the nearest tenth).

Learn more on standard deviation here: https://brainly.com/question/24298037

#SPJ1

Answer:1073

Step-by-step explanation: 104.2-35+69.2

69.2/.4=173

900+173+1073

Answer:

The exec used the phone for 1073 minutes

We just cancel out and isolate for x, then add the 900 minutes

The straight line distance from the front seat to the back is approximately 69.7 feet.

Straight line distance refers to the shortest distance between two points in a straight line, as opposed to the distance that would be traveled along a curved path or following the contours of the terrain.

Let the distance from the front row to the back row be x.

Then, we can use the tangent function to find the height difference between the front and back rows:

tan(12°) = (height difference) / x

Solving for the height difference:

height difference = x * tan(12°)

The problem tells us that the height difference is 15 feet, so we can set up an equation:

15 = x * tan(12°)

Solving for x:

x = 15 / tan(12°) ≈ 69.7 feet

Therefore, the straight line distance from the front seat to the back is approximately 69.7 feet.

Learn more about straight line distance here : brainly.com/question/28604717

#SPJ1

Given that AC bisects ∠BCD, the complete flowchart proof is given below:

One of the first areas of mathematics is geometry, along with arithmetic. It is concerned with spatial characteristics like the separation, shape, size, and relative placement of objects.

A geometer is a mathematician who specializes in geometry.

GIven the shape in the image, the flowchart proof has been completed above.

Read more about geometry here:

https://brainly.com/question/24375372

#SPJ1

Answer:

66mm

Step-by-step explanation:

Factors other than independent variables which may act on the dependent variable , when these factors vary systematically with independent variable they are known as confounds variables or extraneous variable.

Therefore, factors which vary systematically with the given independent variable is called  confounds variables or extraneous variable.

Learn more about factors here

brainly.com/question/29474540

#SPJ4

The percent of change is the change in value in percent from 90 to 18 that is an 80% decrease.

To calculate the percent change from 90 to 18, we first need to find the difference between the two values:

Change = Final Value - Initial Value

Change = 18 - 90

Change = -72

The negative sign indicates that there has been a decrease in value.

To find the percent change, we can use the following formula:

Percent Change = (Change / Initial Value) x 100%

Percent Change = (-72 / 90) x 100%

Percent Change = -80%

So there is decrease in percent from 90 to 18 that is by 80%.

To know more about Percent:

https://brainly.com/question/25828142

#SPJ4

An estimated Rs. 1863.40 will be needed to cement the route.

Diameter of park [tex]$=7 \mathrm{~m}$[/tex]

so, radius of park [tex]$=\mathrm{r}_1=3.5 \mathrm{~m}$[/tex]

Width of park [tex]$=0.7 \mathrm{~m}$[/tex]

Bigger radius of park [tex]$=\mathrm{r}_2=0.7+3.4=4.2 \mathrm{~m}$[/tex]

Now, Area of path = area of bigger circle -area of smaller circle

[tex]$=\pi r_2^2-\pi r_1^2=$ $\pi\left(r_2^2-\mathrm{r}_1^2\right)=\frac{22}{7}\left(4.2^2-3.5^2\right)=\frac{22}{7}(17.64-12.25)=16.94 \mathrm{~m}^2$[/tex]

Also, Cost of expenditure = rate [tex]$\times$[/tex] area [tex]$=110 \times 16.94=1863.40$[/tex]

Cost of Expenditure of cementing the path is Rs. 1863.40.

To learn more about Cost, refer to:

https://brainly.com/question/25109150

#SPJ1

5 baskets of tomatoes can make 7 1/2 quarts of tomato sauce.

To discover the unknown values in a mathematical equation, we cross multiply the numbers in the equation. The method of cross multiplication is frequently employed to identify the missing variable in an equation. We multiply both the numerator and denominator of the provided expression or fractions.

Given that, we get 3 quarts of tomato sauce from 2 baskets of tomatoes.

Thus,

2 baskets = 3 quarts

5 baskets = x

Use the method of cross multiplication or butterfly method for multiplication.

x = (3)(5)/2

x = 15/2

x = 7 1/2

Hence, 5 baskets of tomatoes can make 7 1/2 quarts of tomato sauce.

Learn more about cross multiplication here:

https://brainly.com/question/15209325

#SPJ1

The properties justify the steps are taken to solve the system 2a+7b=0 3a-5b=31 as Multiplication, Substraction, Division,  Simplify, etc.,

What is the linear equation?

A linear equation is an algebraic equation of the form y=mx+b. where m is the slope and b is the y-intercept.

'The properties that justify the steps taken to solve the system 2a + 7b = 0, 3a - 5b = 31 are:

2a + 7b = 0, 3a - 5b = 31

10a + 35b = 0, 21a - 35b = 217   <-------> Multiplication property of equality.

31a = 217                                      <-------> Substraction property of equality.

a = 7                                            <-------> Division property of equality.

2(7) + 7b = 0,                             <-------> Substitution property of equality.

14 + 7b = 0,                              <-------> Simplify  

7b = -14,                                   <-------> Simplify  

b = -14/7,                                  <-------> Division property of equality.

b = -2

Therefore, the properties justify the steps are taken to solve the system 2a+7b=0 3a-5b=31 as Multiplication, Substraction, Division,  Simplify, etc.,

To learn more about the linear equation visit,

https://brainly.com/question/2030026

#SPJ1

The time taken by the new computer to send an email found using the unitary method, is 7.5 minutes.

What is a unitary method?

The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.

Let,

Time taken by new computer to send 1 email = x

Time taken by the old computer to send same mail = 2x

Using unitary method

In 1 minute

Work done by new computer = 1/x

Work done by old computer =1/2x

Given the time taken when both computers work together  = 5 minutes

Work done in 1 minute by both = 1/5

So we can write,

1/x + 1/2x = 1/5

3/2x = 1/5

x = 7.5 minutes

Therefore the time taken by the new computer to send an email found using the unitary method, is 7.5 minutes.

To learn more about unitary method, follow the link.

https://brainly.com/question/24587372

#SPJ1

Answer:

The solution is 37/30

Step-by-step explanation:

[tex] \sf \frac{2}{15} - ( - \frac{11}{10} ) \\ \\ = \sf \frac{2}{15} + \frac{11}{10} \: \: \: \: \: \: \\ \\ \\ = \sf \frac{2 + 11}{30} \: \: \: \: \: \: \: \: \: \\ \\ \: \: \: \: = \: \sf \frac{2(2) + 11(3)}{30} \\ \\ = \sf \frac{4 + 33}{30} \: \: \: \: \: \: \: \: \\ \\ = \sf \frac{37}{30} \: or \: 1 \frac{7}{30} \: \: [/tex]

The value of a₄ is 19.

What is arithmetic progression?

A progression or sequence of numbers known as an arithmetic sequence maintains a consistent difference between each succeeding term and its predecessor. The common difference in that mathematical progression is the constant difference.

Here, we have

Given: a₁ ​ =7 and aₙ ​ = aₙ₋₁ + 4

We have to find the value of a₄.

a₁ ​ =7

aₙ ​ = aₙ₋₁ + 4

aₙ ​- aₙ₋₁ = 4

The common difference is 4.

In order to solve, replace the value of the previous answer with the equation for the next answer.

a₁ = 7

a₂ = 7 + 4 = 11

a₃ = 11 + 4 = 15

a₄ = 15 + 4 = 19

Hence, the value of a₄ is 19.

To learn more about the arithmetic progression from the given link

https://brainly.com/question/6561461

#SPJ1

Answer:

Area A, is x times y

Step-by-step explanation:

To find the area you must multiply the light x width of a rectangle or square

um.... kauser is this u

The length of the two sides of the given right triangle is 5√2

A triangle with an angle right angle is called a right triangle.

Given that, a right triangle, with an acute angle of 45° and the length of hypotenuse is 10 units,

We need to find the length of two sides u and v,

The sum of a triangle is 180°, and if one angle is 90° and the other is 45° therefore, the third is also 45°

Now, we know that, sides opposite to equal angles are equal,

Therefore, v = u,

Now, using the Pythagoras theorem,

10² = v²+u²

v² + v² = 100

2v² = 100

v² = 50

v = 5√2

u = 5√2

Hence, the length of the two sides of the given right triangle is 5√2

Learn more about right triangle, click;

https://brainly.com/question/6322314

#SPJ9

The parcel is 30 acres in size, calculated as 10 acres for the NW 1/4 of the SE 1/4 and 20 acres for the S 1/2 of the SW 1/4 of the NE 1/4.

To solve the problem, we need to know the size of the quarter sections that are being referred to. In the United States, a quarter section is 160 acres.

Using this information, we can break down the given parcel as follows:

NW 1/4 of the SE 1/4: This represents 1/16 of a section, or 10 acres (160 acres / 16 * 1 = 10).

S 1/2 of the SW 1/4 of the NE 1/4: This represents 1/8 of a section, or 20 acres (160 acres / 8 * 1/2 = 20).

To find the total size of the parcel, we simply add these two areas together:

(10 + 20 )acres = 30 acres

Therefore, the parcel is 30 acres in size.

In the United States, a section of land is a unit of area measurement used in land surveys, and it is equal to 640 acres. A quarter section is, therefore, one-fourth of a section, or 160 acres.

The given parcel is described as two parts. The first part is the northwest quarter of the southeast quarter, which is equivalent to one-sixteenth of a section or 10 acres (1/4 x 1/4 x 160 acres = 10 acres).

The second part is the south half of the southwest quarter of the northeast quarter, which is equivalent to one-eighth of a section or 20 acres (1/4 x 1/4 x 1/2 x 160 acres = 20 acres).

To find the total size of the parcel, we add the area of the two parts: 10 acres + 20 acres = 30 acres. Therefore, the parcel is 30 acres in size.

Learn more about area here:

https://brainly.com/question/12187609

#SPJ4

Luke received a total of 640 marbles from the total of 1400 marbles that Luke, Andre and Shema had combined.

Luke, Shemai and Andre combined has 1400 marbles. Andre has 200 fewer than Luke and twice as many as Shemia.

Now, let us say that Luke had X marbles then Andre will have X-200 marble and Shemai will have X/2 marbles.

Now, all the marbles combined will be equal to 1400, so, the simple algebraic relation will be,

X + X-200 +X/2 = 1400

X+X+X/2 = 1600

5X/ = 3200

X = 640

So, Luke will have a total of 640 marble while Andre and Shemai will have 440 and 320 marbles each.

To know more about algebraic relations, visit,

https://brainly.com/question/29170280

#SPJ4

Using the table of measurement,  0.4970969  is equivalent to 800 meters

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. To convert a mile measurement to a centimeter measurement, multiply the length by the conversion ratio.

1 inch = 2.54 centimeters

1 foot = 0.3048 meters

1 mile = 1.60 kilometers

Recall that 1 mile is 1609.344 meters

Therefore, the equivalence is 800/1609.344

Therefore 800 meters is equivalent to 0.4970969 miles

Learn more about meters and miles on https://brainly.com/question/29018717

#SPJ1