To make a sand sculpture Arthur used 2 cm³ of red sand with a density of 4 g/cm³ 7 cm³ of yellow sand with a density of 5 g centimeter and 5 cm³ of brown sand with a density of 6 g cubiccm³ what is the average density of the sculpture in grams per cubic centimeter express your answer as decimal to the nearest 10th.

Answer:

6 is my final answer

Step-by-step explanation:

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The solution of the system of linear equations is (x, y, z) = (1, 1, - 3).

In this problem we find a system of three linear equations with three variables, which can be resolved by several methods. In this case, we shall use the method of substitution. First, clear the variable x in the third equation:

x = 4 - 3 · y

Second, substitute x in the first two equations:

3 · (4 - 3 · y) + 2 · y - z = 8

12 - 9 · y + 2 · y - z = 8

- 7 · y - z = - 4

2 · (4 - 3 · y) + 2 · z = - 4

8 - 6 · y + 2 · z = - 4

- 6 · y + 2 · z = - 12

Third, clear z in the first equation derived in the previous step:

z = 4 - 7 · y

Fourth, substitute z in the second equation derived in the second step:

- 6 · y + 2 · (4 - 7 · y) = - 12

- 6 · y + 8 - 14 · y = - 12

- 20 · y = - 20

y = 1

Fifth, calculate y and x:

z = 4 - 7 · 1

z = - 3

x = 4 - 3 · 1

x = 1

The solution of the system of linear equations is (x, y, z) = (1, 1, - 3).

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The number of coffee product he sells is 38.

He makes $11.50 per hour.

He earns $0.50 for each of these items he sells.

Last week he worked 30 hours and earned $364.

Therefore, the number of coffee product he sells last week can be calculated as follows:

let

x = number of coffee product he sells.

364 = 11.50(30) + 0.50(x)

364 = 345 + 0.50x

364 - 345 = 0.50x

19 = 0.5x

divide both sides by 0.5

x = 19 / 0.5

x = 38

Therefore, the number of coffee product he sells is 38.

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Answer:

She have to study 4 hours and 42 minutes to get 93 marks.

Step-by-step explanation:

when she studied 4 hours she got 79

when she studied 1 hour she got 4/79

[tex]4 \div 79\times 93[/tex]

is the time when she got 93

= 4.70

It means the time will be 4 hours 42 minutes

Answer:

y=1/5x

y=0

Step-by-step explanation:

The statement that correctly compares the number of songs on Georgia and Scarlet's playlists are is  17 < 36.

Georgia has 17 songs on her playlist while Scarlet has 36 songs on her playlist.

In the number line, the number 36 comes after the number 17. This means that 36 is greater than 17.

The statement that therefore correctly compares the number of songs in the playlist is:

17 < 36

In conclusion, the statement that correctly compares the songs in the two playlists is 17 < 36.

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The years where the spending will be more than $89 billion are: after 2009, i.e., 5 years after 2004, as found by basic algebra.

Numbers, variables, constants, expressions, equations, linear equations, and quadratic equations are all part of the basics of algebra. Additionally, the algebraic expressions contain the basic arithmetic operations of addition, subtraction, multiplication, and division.

Given: y = 14.4x + 17,

where: x = number of years after 2004

y = amount spent by businesses

To find: number of years where spending

$89 billion.

Finding:

We are given: y = 89, for which, we have to find the x, i.e., the number of years.

By basic algebra, substituting the value of y and solving for x:

89 = 14.4x + 17

72 = 14.4x

x = 5

Hence, The years where the spending will be more than $89 billion are: after 2009, i.e., 5 years after 2004, as found by basic algebra.

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The value of x is 11 units and the length of side RS = 11x-4 is 117 units.

with measurement BC = 60, CD = 50.

Triangle RST : RS = 11x-4, ST = 70

Two figures are said to be similar if they are the same shape. In more mathematical language, two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of their corresponding sides are equal.

Given:

BC = 60 and CD = 50

RS = 11x - 4 and ST = 70

Now, considering

BC : CD = RS : ST

60 : 50 = 11x - 4 : 70

60/50 = (11x - 4)/70

50 * (11x - 4) = 70 * 60

11x - 4 = 84

11x = 88

x = 11

So, RS = 11x - 4

RS = 11 x 11 - 4

RS = 117

Hence, the value of x is 11 and the length of side RS is 117

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12 is the population mean or sample mean of given data.

Given that

The collected data

17, 10, 3, 5, 25

To find

The population mean or sample mean

So, according to the question

we have,

The collected data

 17, 10, 3, 5, 25

For calculate the the population mean or sample mean, We have to find out the total of data, and total number of data.

Total of data = 17+ 10 +3 + 5+ 25

Total of data = 60

Total number of data (n) = 5,

So, we know that

Sample mean = [tex]\frac{total\;of\;data}{n\;number\;of\;data}[/tex]

Now, putting the all values,

We will get,

Sample mean =  60/5  

 = 12          

The Sample mean of given data is 12.

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Answer:

0.234

Step-by-step explanation:

The total number of people in the age range from 30-49 is 7282 (3752 + 3530 the totals at the bottom of the column.  The total number of people out of that group that have completed high school is 1704 (787 + 917 the number of people in that column that have finished high school).

[tex]\frac{1704}{7282}[/tex] = .23400164789  Rounded to the nearest thousandths place is .234

Answer:

B: 3x+(4x+2)=180

Step-by-step explanation:

Supplementary angles are those angles that sum up to 180 degrees. The question gives you the two angles that compose the 180 degree angle thus you get the equation:

Angle 1 + Angle 2 = Supplementary Angle

In this case we see that these two angles are Angles B and C and a supplementary angle is 180 degrees thus:

(4x+2)+3x = 180

Furthermore this also allows you to find x.

Solution:

B.) [tex](6-\sqrt{33}, 6+\sqrt{33})[/tex]

Hope this helps! If so, please lmk! Thanks and good luck!

The solution of the given trigonometric form equation as required in the complete task content is; x = nπ where n is any real number integer value.

It follows from the task content that the solution to the given trigonometric equation is to be determined.

Given;

Cos(x) - 1 = 0

Add 1 to both sides of the equation;

Cos (x) = 1

Therefore, the value of x can be determined by evaluating the cos inverse of (-1).

Hence,

x = Cos-¹(1)

x = nπ (where n is any integer real number value).

Ultimately, the solution of the given trigonometric form equation as required in the complete task content is; x = nπ where n is any real number integer value.

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Answer:

4 lines

Step-by-step explanation:

We know that a parallelogram is constructed using two parallel lines intersecting other pairs of parallel lines so basically we require 4 lines to construct a parallelogram.

Answer:4

Step-by-step explanation:

They sold 10 bags of butter popcorn, 20 bags of kettle corn and 26 bags of cheddar cheese.

Here, we are given that two boy scouts were selling popcorn for a fundraiser.

Their total revenue = $640

Let the bags of butter popcorn be x

then, the bags of kettle corn sold = 2x

and the bags of cheddar popcorn sold = 2x + 6

Cost of kettle corn = $15/ bag

Cost of butter popcorn = $8/ bag

Cost of cheddar popcorn = $10/ bag

Thus, the total revenue from from kettle corn = $30x

total revenue from from butter popcorn = $8x

total revenue from from cheddar popcorn = $10(2x + 6)x

Thus, we will get the following equation-

30x + 8x + 10(2x + 6) = 640

38x + 20x + 60 = 640

58x + 60 = 640

58x = 580

x = 580/ 58

x = 10

Thus, 2x = 20 and 2x + 6 = 26

Hence, they sold 10 bags of butter popcorn, 20 bags of kettle corn and 26 bags of cheddar cheese.

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The equation of the two-step problem is 2x = x + 19

The conditions are given as

Let the variable in the equation be x

So, a possible equation is as follows

2x = x + 19

The solution to the equation is as follows

2x = x + 19

Subtract x from both sides

x = 19

Hence, the equation of the two-step problem is 2x = x + 19

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Answer:

y = 3

Step-by-step explanation:

Points: (1, y), (-5, -1)

slope = (y_2 - y_1)/(x_2 - x_1)

slope = (-1 - y)/(-5 - 1) = (-1 - y)/(-6)

slope = 2/3

(-1 - y)/(-6) = 2/3

Multiply both sides by -6.

-1 - y = -6 × 2/3

-1 - y = -12/3

-1 - y = -4

-y = -3

y = 3

Answer: 3 gallons per hour

Step-by-step explanation: 14-(3x) =5 14-5=9 9/3=3

By adding the number of cups needed for each cake, we conclude that you will need 25 cups of ingredients to make the 4 cakes.

We know that the recipe calls for:

That is for a single cake, so in a single cake you need a total of cups given by the sum of the above quantities, this gives:

(1 + 3/4) + (4 + 1/5) + 3/10 = (1 + 4) + (3/4 + 1/5 + 3/10)

= 5 + (3/4 + 2/10 + 3/10) = 5 + (3/4 + 5/10) = 5 + (3/4 + 1/2) = 5 + 5/4

= 5 + 4/4 + 1/4 = 6 + 1/4

Each cake needs (6 + 1/4) cups of ingredients, so 4 cakes will need:

4* (6 + 1/4) = 24 + 4/4 = 25

You will need 25 cups of ingredients to make the 4 cakes.

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Answer:

56.25

Step-by-step explanation:

9/4×25

=225/4

=56.25

A) The reason why Chris had higher savings by retirement age, is because he saved $5000 annually from ages 25 to 65 while susan did so only from ages 25 to 35 .

B) The reason why Susan had a higher retirement savings than bill is because Susan started investing 10 years earlier than bill and so her investment had a longer period to compound.

A) From the given exponential graph, we see that Chris curve was simialr to that of susan between ages 25 to 35 and suddenly Chris curve began to rise at a faster rate than that of Susan after that until when retired at 65 years of age.

Since we are told that chris continued that amount till retirement at 65, we are told that susan contributed the same amount for only that period between ages 25 and 35. Thus, it means that the reason why Chris had higher savings by retirement age, is because he saved $5000 annually from ages 25 to 65 while susan did so only from ages 25 to 35 .

B) The reason why susan had a higher retirement savings than bill is because susan started investing 10 years earlier than bill and so her investment had a longer period to compound.

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Answer:

  [tex]\textsf{C}\quad f^{-1}(x)=24-6x[/tex]

Step-by-step explanation:

You want the inverse function of f(x) = 24 -x/6.

The function relates x to y by y = f(x). The inverse function gives the reverse relation: x = f(y). Solving this for y gives the inverse function in the form you want.

  x = f(y)

  x = 4 -y/6 . . . . . use definition of f(x)

  6x = 24 -y . . . . multiply by 6

  y = 24 -6x . . . . add y-6x

  f⁻¹(x) = 24 -6x . . . . write using function notation

Answer: 48 represents total amount and s represents scarves

Step-by-step explanation:

It tells you when you read the sentence carefully.

Answer is - 2 [tex]\sqrt{3}[/tex] / 13

Cosecant Given a point P(x, y) on the terminal side of an angle θ in standard position

cosθ = cos (π + d) (d is the inner angle of the tringle)

       = - cos 2

       = - 4 / - [tex]\sqrt{(- 6^{2} + (- 4^{2} )[/tex]

       = - 4 / - [tex]\sqrt{36 + 16 }[/tex]

      = - 4 / -[tex]\sqrt{52}[/tex]

      = - 4 / 2[tex]\sqrt{13}[/tex]

      = - 2 / [tex]\sqrt{13}[/tex]

multiply by [tex]\sqrt{13}[/tex]

we get,

      = -  [tex]\frac{2 \sqrt{13} }{13}[/tex]

Formulae :

Arc cosecant      y = arcs(x) = csc-1(x). Another way to write x = csc(y).

Arccosine      y = arcos(x) = cos-1(x). Another way to write x = cos(y).

Arc cotangent    y = arcos(x) = cot-1(x). Another way to write x = cot(y).

Arc secant       y = arcsec(x) = sec-1(x). Another way to write x = sec(y).

Arcsine       y = arcsine(x) = sin-1(x). Another way to write x = sin(y).

Arctangent   y = arctan(x) = tan-1(x). Another way to write x = tan(y).

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The required measure of the angle m∠B is 121°.

Given that,
Angle A and B are two vertical equal angles.
m∠B = 3x - 17
m∠A = 2x + 29

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
m∠A = m∠B
2x + 29 = 3x - 17
-x = - 46
x = 46

Now,
m∠B = 3  *46 - 17
m∠B =  138 - 17
m∠B = 121°

Thus, the required measure of the angle m∠B is 121°.

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Answer:

2r+24

Step-by-step explanation:

The number is R · R is added to 12 : R + 12. Double the result: 2 (R + 12). = 2 R + 24. So the answer is ultimatley 2r+24.

Answer: 2R+24

Step-by-step explanation:

(R+12)*2= ==> multiplication comes before addition, so in order to indicate that addition occurs before multiplication, there should be parentheses around

2(R+12)=

2R+2*12=2R+24

all that sides which can be applicable in the given side of triangle are:

F.5

A.7

C.9

Third Side of a Right Angle Triangle Pythagorean Theorem. The length of the hypotenuse in a right triangle can be determined using the Pythagorean Theorem. You can determine the length of the missing side using algebra and square roots as long as you are only given two lengths.

a,b and c are the sides of a triangle if it satisfies:

a<b+c  , b<a+c and c<b+a

Here, a=4 and b=7

We have to find c

i.e. all those c which satisfies:

4<7+c , 7<4+c and c<4+7=11

D.3   it is not true since it doesn't satisfies second inequality

F.5   it is true

A.7   it is true

C.9   it is true

E.11   This is clearly false, since it doesn't satisfies inequality third

F.5 This is clearly false, since it doesn't satisfies inequality third

Hence, correct options are:

F.5

A.7

C.9

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No, the picture frame will not fit into a box that measures 7.5 inches on each side because the side of the frame will be greater than it that is 7.54 inches.

Length of picture frame is given as:

= 7 (6 / 11)

= 7.54 inches

The length of Box is given as = 7.5 inches

From the above, we can see that the length of the box is smaller than the length of the picture frame.

So, the picture frame will not be able to fit in the box.

Therefore, we get that, the picture frame will not be able to fit into a box that measures 7.5 inches on each side because the side of the frame will be greater than it that is 7.54 inches.

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Your question was incomplete. Please refer the content below:

Rochelle needs to pack a picture frame that measures 7 6/11 (fraction 6 over 11) inches

on each side. Will it fit into a box that measures 7.5 inches on each

side?

Answer:

B. 6

Step-by-step explanation:

$10.35 × 24 = 248.4 per week

248.4 × 30% = 74.52 {30% of her earnings}

$74.52 × 6 weeks = $447.12

∴ She needs to work for 6 weeks in order to save up to $399

Answer: please=356

Step-by-step explanation:

219 +485 = 348 + please

704=348 + please

please=356