What is the constant of proportionality in the equation y=3x, equals, 3, x?
constant of proportionality =equals

The ratio of x:y  is 4:3.

Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other. Two categories can be used to categories ratios. Part to whole ratio is one, while part to part ratio is the other. The part-to-part ratio shows the relationship between two separate entities or groupings.

For instance, a class has a 12:15 boy-to-girl ratio, but the part-to-whole ratio refers to the relationship between a particular group and the entire. For instance, five out of every ten people enjoy reading. As a result, the ratio of the portion to the total is 5: 10, meaning that 5 out of every 10 persons enjoy reading.

Given:

15% of x=20% of y

So,

15 / 100 × x = 20 / 100 × y

3 / 20x = 1/5y

x / y = 1/5 x 20/3

x / y = 4/3

Hence, the ratio of x:y  is 4:3.

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Height of the ladder on the wall in decreasing at the rate of ≈ 6m/s

Finding a function's derivative, or rate of change, is the process of differentiation in mathematics. The practical approach of differentiation can be performed utilizing only algebraic operations, three fundamental derivatives, four principles of operation, and an understanding of how to manipulate functions, in contrast to the theory's abstract character.

let ym be the height of wall at  which ladder touches

Also let the foot of ladder be xm away from the wall

then by the pythagoras theorem we have ,

[tex]x^{2} +y^{2} =[/tex] 64 [ length of ladder = 8 m ]

⇒ y = [tex]\sqrt{64 - x^{2} }[/tex]

then , the rate of change of height (y) with respect to time (t) is given by

[tex]\frac{dy}{dt}=\frac{-x}{\sqrt{64 - x^{2} }} . \frac{dx}{dt}[/tex]

it is given that [tex]\frac{dx}{dt}[/tex] = 5 m/s

∴ [tex]\frac{dy}{dt}=[/tex] [tex]\frac{-5x}{\sqrt{64 - x^{2} }}[/tex]

now when x = 6m , we have :

[tex]\frac{dy}{dt} = \frac{-5 * 6}{\sqrt{64 - 6^{2} }}[/tex]

  = -30 / 5 .3

  = -5.660377358490566

therefore height of the ladder on the wall in decreasing at the rate of ≈ 6m/s

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Answer:

Perimeter (to the nearest tenth) = 24.3

Step-by-step explanation:

Answer: there is no picture again. just take a good guess

Step-by-step explanation:

The cost of the bag of cat food is $6.22

What is cost prize ?

The prize at which the good and services have been bought is known as cost prize.

here, the given information is :

Cost of a container of cat liter = $13.75

Cost of a bag of cat food = X dollars

Total amount of money required to purchase the items = $20.80

Percentage of sales tax that had to be given = 4%

Then,

Amount of sales tax given = (4/100) * 20.8 dollars

                                            = 20.8/25 dollars

                                            = 0.83 dollars

Then the total purchase price for the two items = 20.80 - 0.83 dollars

                                                                               = 19.97 dollars

Now we can easily find the cost of the cat food by subtracting the cost of the liter from the total purchase amount :

Cost of the cat food = 19.97 - 13.75 dollars

                                = 6.22 dollars

Therefore, the cost of the bag of cat food is $6.22

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Answer:

27

Step-by-step explanation:

length+base+heigth+breath

=6cm+10cm+4cm+7cm

=27cm

but I am not very sure so when it is correct the give me thanks or rate the answer so I will know it is correct

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[tex](\frac{3}{8} )^{-2}[/tex]

[tex](\frac{8}{3})^{2}[/tex]

[tex](\frac{8}{3} )\times(\frac{8}{3} )[/tex]

[tex]\frac{8\times8}{3\times3}[/tex]

[tex]\frac{64}{9}[/tex] or [tex]7.1111111[/tex]

The solution for x + 3 is greater than or equal to 2x - 6 is x ≤ 9.

Given,

x + 3 is greater than or equal to 2x - 6

That is,

x + 3 ≥ 2x - 6

Solve for x in this solution.

So,

x + 3 ≥ 2x - 6

Here,

6 + 3 ≥ 2x - x

Then,

9 ≥ x

That is,

The solution for x + 3 is greater than or equal to 2x - 6 is x ≤ 9.

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Answer:

39.

Step-by-step explanation:

50779 divided by 590 is 86, with a remainder of 39.

The volume of the building in the shape of a square pyramid is 252720 m³

In terms of geometry, a square pyramid is a pyramid with a square base and four lateral faces. A pyramid is a type of polyhedron with three or more triangle faces that meet above its base (the apex).

The building is in the shape of a square pyramid.

The base of the building is 54 meters long.

The height of the building is 260 meters.

The volume of the right square pyramid is given as:

V = ( 1/3)a²h

Where a is the base and h is the height.

Now we have,

a = 54 meters and h = 260 meters

Then the volume of the building is:

V = ( 1/3)a²h

V = ( 1/3 ) × ( 54 )² × 260

V = ( 1/3 ) × 54 × 54 × 260

V = 758160/3

V = 252720 m³

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The new function that can be formed after f(x) transforms horizontally 4 units to the right and then vertically 7 units upwards is
H(x) = h(x) = x² + 11x + 37.

How to shift an equation horizontally?
For a function, f; a brand new function d(x) = f(x - h), where h is a constant, is a horizontal shift of the function f; for positive 'h' the graph shifts right and for negative 'h' the graph shifts left.
How to shift an equation vertically?
For a function, f; a brand new function d(x) = f(x) + k, where k is a constant, is a vertical shift of the function f; for positive 'h' the graph shifts up and for negative 'h' the graph shifts down.

Given, the equation is f(x) = x² + 3x + 2
The new equation formed will be = h(x)
Also, the function horizontally shifts 4 units to the right.
Therefore, h(x) = f(x + 4) = (x + 4)² + 3(x + 4) + 2 = x² + 11x + 30
Again, the function formed in h(x) vertically shifts up by 7 units.
Thus, new equation for h(x) is = h(x) + 7 = x² + 11x + 37
Therefore, the required equation for H(x) = h(x) = x² + 11x + 37

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Answer:

26.208 miles

Step-by-step explanation:

42.195 / 1.61 = 26.208 miles

Applying logarithm properties, the solution of the highlighted question is given as follows:

x = 4.

The logarithmic equation is given as follows:

[tex]\log_{a}(x + 2) = \frac{1}{3}\log_{a}{8} + \log_{a}{3}[/tex]

First, we apply the power rule, meaning that the multiplying coefficient of the logarithm can be the power of the given term, hence:

[tex]\frac{1}{3}\log_{a}{8} = \log_{a}{8^{\frac{1}{3}}} = \log_{a}{\sqrt[3]{8}} = \log_{a}{2}[/tex]

Then the equivalent expression is:

[tex]\log_{a}(x + 2) = \log_{a}{2} + \log_{a}{3}[/tex]

Now we apply the product rule, as the sum of two logarithms of same base can be written as a single logarithm, keeping the base and multiplying the terms.

Hence the equivalent expression is:

[tex]\log_{a}(x + 2) = \log_{a}{(2 \times 3)}[/tex]

[tex]\log_{a}(x + 2) = \log_{a}{6}[/tex]

The logarithm function is one-to-one, meaning that if they have the same input, they will have the same output, hence we can solve for x as follows:

x + 2 = 6

x = 6 - 2

x = 4.

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On simplifying the given expression 4/x-2/x^2+1-2/x+1 we get solution as (2x^2 + 2x - 2)/x^2.

What is the meaning of simplifying a n equation?

To simplify a phrase, create an equivalent expression without any terms that are identical. The expression will then be rewritten using the fewest terms feasible.

We have given:

[tex]\frac{4}{x} - \frac{2}{x^2} +1 - \frac{2}{x} + 1[/tex]

Adding the numbers:

[tex]\frac{4}{x} - \frac{2}{x^2} - \frac{2}{x} + 2[/tex]

Making a common denominator:

[tex]\frac{4x}{x^2} - \frac{2}{x^2} - \frac{2x}{x^2} + \frac{2x^2}{x^2}[/tex]

Combining the values with common denominator:

[tex]\frac{2x^2 + 2x - 2}{x^2}[/tex]

This the the simplified result of the given expression.

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The average rate of change of f is less than the average rate of change of g.

What is average rate ?

This expression represents the average rate of change of the function f over the range a≤x≤b is less than or equal to x, and is less than or equal to b:

f(b)−f(a) / b - a

It is the average amount by which the function changed per unit throughout that time period.

Here, in Average rate of change in function g over [-3, 0]

=> a = -3, b = 0

=> f(a) = 5 , f(b) = 14

Average rate of change = (14 - 5) / (0 - (-3))

                                        = 3

​

Now, in Average rate of change in function f over [-3, 0]

=> a = -3, b = 0

=> f(a) = -3, f(b) = 0

Average rate of change = (0 - (-3)) / (0 - (-3))

                                        = 1

Therefore, The average rate of change of f is less than the average rate of change of g.

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By solving the equation we can conclude that Andre (36,000 steps) walks more than Priya (35,400 steps).

So, the distance that Andre traveled.

He demonstrated his ability to take 6000 steps in 50 minutes.

The pace at which Andre can walk is:

The 5 hours in minutes conversion: 5  × 60 minutes = 300 minutes

Then,

The distance traveled by Andre is:

Where x represents the number of minutes and y is the number of steps.

The formula to convert 5 hours to minutes is:

Replace x with its value in the equation:

35400 steps are taken by Priya.

Therefore, by solving the equation we can conclude that Andre (36,000 steps) walks more than Priya (35,400 steps).

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The correct question is given below:

Andre and Priya are tracking the number of steps they walk. Andre records that he can walk 6000 steps in 50 minutes. Priya writes the equation y=118x, where y is the number of steps and x is the number of minutes she walks, to describe her step rate. This week, Andre and Priya each walked for a total of 5 hours. Who walks more steps?

The value of y when x = -7 according to the function defined y = w(x) is; 9.

It follows from the task content that the value of y when x = -7 is to be determined according to the given expression; y = w(x).

Since it follows from the task content that;

y = w(x)

Therefore, it follows that when; x = -7; we have;

y = w(-7).

However, recall from the function instances given that; w(-7) = 9;

Therefore, y = w(-7) = 9.

Ultimately, the value of y when x = -7 as required in the task content is; 9.

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Answer:

x < 6

Step-by-step explanation:

x/3 + x/4 < 7   | * 12

4x + 3x < 84

7x < 84   | : 7

x < 12

1 - x/6 > 0

1 > x/6   | * 6

6 > x

x < 6

x < 6 and x < 12 gives x < 6

Answer: m11= 180-90= 90 (linear pair)

m12= 180-90= 90 (linear pair)

m13= 90 linear pair

59.25 euros is the the total cost of the cans of weedkiller needed to cover the lawn

A trapezium is a convex quadrilateral with exactly one pair of opposite sides parallel to each other

The figure that is formed is the following with the respective measurements, now to calculate the area we need the height, for Pythagoras we have:

17 ²= h ² + 8 ²

h ² = 289 - 64

h ² = 225

h = 15

now the figure area is as follows:

A = h × (b + a) / 2

b long side 20 m and short side 12 cm, replacing:

A = 15 × (12 + 20) / 2

A = 240 m²

We are told that each can of weed killer can cover up to 100m ^ 2

Thus:

240/100 = 2.4, so you would need 3 cans of weedkiller

each can costs 19.75, which means that the total cost is:

19.75 × 3 = 59.25 euros

Hence 59.25 euros is the the total cost of the cans of weedkiller needed to cover the lawn.

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Answer:

7.2 × 10^-6

Step-by-step explanation:

7.2 are the two last digits of the notation

and the reason its to the power of -6 is because there are 6 digits until you reach 7

Answer:

discount = $8.25   Total=$46.75

Step-by-step explanation:

[tex]\frac{x}{55}[/tex] = [tex]\frac{15}{100}[/tex]                                        55.00-8.25= $46.75    

[tex]\frac{100x}{100}[/tex] = [tex]\frac{825}{100}[/tex]                                          total= $46.75

x=8.25

discount = 8.25

Answer: The discount is $8.25, the total price you pay is $46.75

Step-by-step explanation:

To find the discount, you multiply the decimal of the percent, which is .15 by the total. So 55*.15=8.25. That is how much of a discount you get.

To find the total amount you pay after the discount you simply subtract the discount from the total, so 55-8.25=46.75

The customer can purchase 1.19788 pounds of cheese (approximately 1.2 pounds).

We are given with the cost of ham is $2.49 per pound and

Cost of swiss cheese is $3.79 per pound.

So, the cost of 2 pounds of ham will be given as-

= 2× $2.49

= $4.98

Since, the customer has a total of  $9.50 to spend on 2 pounds of ham and some cheese,

∴ Let the number of pounds of cheese she can purchase be x.

Then the equation will be this:

2.49*2 + 3.79*x = 9.50

4.98 + 3.79x = 9.50

Subtracting 4.98 from each side we get-

4.98 -4.98 + 3.79x = 9.50-4.98

3.79x = 4.54

x  [tex]=\frac{4.54}{3.79}[/tex]

x = 1.19788 pounds of cheese (approximately 1.2 pounds).

Hence, the customer can purchase 1.19788 pounds of cheese (approximately 1.2 pounds).

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-119

1) Let's evaluate that polynomial when y=4, note that to evaluate is to find out the corresponding value when we plug into that another one:

2) Hence, the answer is -119

Answer:9 days

Step-by-step explanation:A lot of division is required, but because 8.75 probably isn't an answer, I rounded up to 9.

If the knowledge that an event "a" has occurred implies that another event "b" cannot occur, then the events "a" and "b" are said to be disjoint events.

As per the question statement, the knowledge that an event "a" has occurred implies that another event "b" cannot occur.

We are required to determine the characteristic name for the above mentioned events.

And here, if event "a" occurs, even "b" does not, implying the fact that, events "a" and "b" cannot occur simultaneously. Hence, as per the above definition of disjoint events,  the events "a" and "b" are be disjoint.

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1. The unit price of apple in store A is $4

2. The unit price of apple in store B is $2

3. The unit price of apple in store C is $3

4. The store with the lowest unit price is store B

1. How to determine the unit price at store A

We can obtain the unit price at store A by doing the following:

3 pounds of apples cost $12.

Therefore,

1 pound will cost = (1 × pound $12) / 3 pounds = $4

Thus, the unit price is $4

2. How to determine the unit price at store B

We can obtain the unit price at store B by doing the following:

y = 2x

y = 2x

y = 2 × 1

y = $2

Thus, the unit price is $2

3. How to determine the unit price at store C

We can obtain the unit price at store C by obtaining the slope of the graph. This can be obtaioned as follow:

m = (y₂ – y₁) / (x₂ – x₁)

m = (9 – 3) / (3 – 1)

m = 6 / 2

m = 3

Thus, the unit price is $3

4.How todetermine the store with the lowest unit price

From the above, we can conclude that store B has the lowest unit price

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The algebraic expression should often take one of the following forms: addition, subtraction, multiplication, or division. Bring the variable to the left and the remaining values to the right to determine the value of x. To determine the outcome, simplify the values.

         4x+2x+5x+50= 180

        = 6x+5x+50 =180

        combine 6x and 5x

        =  11x

         11x+50= 180

        subtract 50 both sides

        11x = 180- 5

        =  130

        11x=130

        x= 130/11

          11.81

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