how is 15×3/5 = 9


the slash is for the fraction

Answer:

C

Step-by-step explanation:

7x + 3y = 30 (equation 1)

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

9x = 27 (subtract the two equations to eliminate y)

x = 3 (divide by 9)

7 * 3 + 3y = 30 (Substitute x = 3 into equation 1, it doesn't matter which equation you substitute into)

21 + 3y = 30 (7 * 3 = 21)

3y = 9 (Subtract 21)

y = 3 (divide by 3)

Answer is (3, 3)

Answer:

(3,3)

Step-by-step explanation:

7x + 3y = 30

-2x + 3y= 3

Multiply the second equation by -1 and add together to eliminate y

7x + 3y = 30

2x - 3y= -3

---------------------

9x + 0y = 27

Divide by 9

9x/9 = 27/9

x = 3

Now find y

-2x+3y = 3

-2(3) +3y =3

-6 +3y = 3

Add 6 to each side

3y = 3+6

3y=9

Divide by 3

y = 3

Answer:

/////////////////////////////////////////////

Step-by-step explanation:

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////lalks

50 kg in pounds is 110.231.

Therefore the answer is 110.231.

50 kg is a measure of weight in the metric system. To convert it to pounds, we can use the conversion factor of 1 kilogram equals 2.20462 pounds.

To convert 50 kg to pounds, we can multiply the weight in kilograms by the conversion factor:

50 kg × 2.20462 lb/kg = 110.231 pounds

Therefore, 50 kg is equivalent to 110.231 pounds.

It is important to be able to convert between different units of measurement, particularly when dealing with measurements from different countries or regions. By using conversion factors and keeping track of units, we can ensure accurate measurements and avoid confusion in different contexts.

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The limit exists and is finite, the series is convergent. The sum of the convergent series is 1/2.

To determine if the series is convergent or divergent, we need to express the series Sn as a telescoping sum. Based on the given information, the series can be written as:

Sn = Σ(1/n - 1/(n+1)), where n starts from 2.

Now, let's rewrite the series:

Sn = (1/2 - 1/3) + (1/3 - 1/4) + (1/4 - 1/5) + ... + [1/n - 1/(n+1)]

Notice that the series is telescoping, as most terms cancel out:

Sn = 1/2 - 1/(n+1)

Now, let's analyze the series as n approaches infinity:

lim (n -> ∞) Sn = lim (n -> ∞) [1/2 - 1/(n+1)]

As n goes to infinity, 1/(n+1) goes to 0, so the limit becomes:

lim (n -> ∞) Sn = 1/2

Since the limit exists and is finite, the series is convergent. The sum of the convergent series is 1/2.

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Answer:

30

3

40

70

90

90

80

Step-by-step explanation:

Answer:

6.6333333

The mean is an average, so you add all the numbers together and divide by the number a values added together.

Answer:

6.633...

Step-by-step explanation:

(7.0 + 6.2 + 7.7 + 8.0 + 6.4 + 6.2 + 7.2 + 5.4 + 6.4 + 6.5 + 7.2 + 5.4) / 12

Answer:

These triangles are congruent by AAS.

The measure of variability that is best suited to describe variations in the distribution of the above variable is called  - Index of Qualitative Variation (IQV).

The index of qualitative variation (IQV) is a measure of variance for nominal variables including race, ethnicity, and gender.

The steps to calculating IQV are as follows:

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Answer:

x=13.0909091

Step-by-step explanation:

Answer: 1 3/7

Step-by-step explanation: x = 144/7

                                              x = 13.09 in decimal form

Mixed fraction form = 3 1/7.

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Answer:

We are given a length of 27 cm and a width of 16 cm and we can also see that our figure is a rectangle.  This means that we are able to use the area formula for the rectangle which is \(A=l*w\).

Therefore, we can just multiply 27 cm by 16 cm and we get \(A = 432\ cm^2\)

Hope this helps!  Let me know if you have any questions

=====================================================

Explanation:

Let's say the pool is 4800 gallons. I'm picking this number since 8*6 = 48 and I tacked a few zeros at the end to make the volume a bit more reasonable for a swimming pool. This might be on the low end of the spectrum. It turns out that the actual volume doesn't matter and you can pick whatever favorite number you want.

The pool being 4800 gallons means Anita's rate is 4800/8 = 600 gallons per hour if working alone.

If Chao works alone, then the rate is 4800/6 = 800 gallons per hour.

Their combined rate is 600+800 = 1400 gallons per hour. This assumes neither person slows the other down.

--------------

x = amount of time they work together

1400x = number of gallons cleaned after x hours

1400x = 4800

x = 4800/1400

x = (24*200)/(7*200)

x = 24/7 is the final answer

x = 3.43

It takes about 3.43 hours to clean the pool if they worked together, and if they didn't slow each other down.

The range of ages may be 39 years, it does not provide sufficient information to determine the actual distribution or spread of ages within that range.

Andy's calculation of the range of ages as 39, based on subtracting the minimum age from the maximum age (50 - 11), is incorrect. The range of a set of values represents the difference between the maximum and minimum values, but it does not necessarily reflect the actual span or dispersion of the values within that range.

In the context of ages, the range refers to the difference between the highest and lowest ages in a given group. However, this calculation alone does not provide any information about the distribution or spread of ages within that range.

For example, if a group consists of individuals with ages 11, 12, 13, 14, ..., 49, 50, the range would still be 39 years (50 - 11). However, the ages within that range are evenly distributed and not widely spread.

On the other hand, if the group has ages 11, 11, 12, 13, ..., 49, 50, the range would still be 39 years, but the ages are tightly clustered around the lower end of the range.

Therefore, while the range of ages may be 39 years, it does not provide sufficient information to determine the actual distribution or spread of ages within that range.

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The given two-way Frequency table, there are 33 left-handed students who are not in the music program.

The number of left-handed students who are not in the music program, we need to examine the data presented in the two-way frequency table.

From the table, we can see that the number of left-handed students in the music program is 15, and the total number of left-handed students is 48.

the number of left-handed students not in the music program, we subtract the number of left-handed students in the music program from the total number of left-handed students.

Number of left-handed students not in the music program = Total number of left-handed students - Number of left-handed students in the music program

Number of left-handed students not in the music program = 48 - 15

Calculating this, we find that the number of left-handed students not in the music program is 33.

Therefore, there are 33 left-handed students who are not in the music program, based on the data provided in the two-way frequency table.

In conclusion, based on the given two-way frequency table, there are 33 left-handed students who are not in the music program.

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Answer:

Look at image

Step-by-step explanation:

The point E' will have a y-value of -1 instead of 3 and x-value of 6 instead of -6.

A polygon is a two-dimensional shape composed of straight line segments that close in a loop to form a single shape. Generally, polygons have three or more sides and angles. Depending on the number of sides, polygons can be classified as triangles, quadrilaterals, pentagons, hexagons, and so on.

A reflection across the x-axis of the graph of polygon ABCDE with point E at (-6,3) would result in the creation of a second polygon A'B'C'D'E' with E' at (-6,-1). This is because the reflection flips the points across the x-axis, meaning all of the y-values of the points will be converted to the opposite sign. Therefore, in the new polygon, point E' will have a y-value of -1 instead of 3. This is because the reflection across the x-axis will cause the y-values of each point to flip signs, with the y-value of E increasing from -3 to -1.

Similarly, a reflection across the y-axis of polygon ABCDE with point E at (-6,3) would result in the creation of polygon A'B'C'D'E' with E' at (6,1). This is because the reflection flips the points across the y-axis, meaning all of the x-values of the points will be converted to the opposite sign. Therefore, in the new polygon, point E' will have an x-value of 6 instead of -6. This is because the reflection across the y-axis will cause the x-values of each point to flip signs, with the x-value of E increasing from -6 to 6.

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Answer:

Reflection across y = 1

Step-by-step explanation:

i got this right on the flvs test!

Answer:

-3x^2 + 3x

Explanation:

Answer:

Step-by-step explanation:

\(3( - {x}^{2} + x)\)

\( = 3 \times ( - {x}^{2} ) + 3 \times x\)

\( = - 3 {x}^{2} + 3x(ans)\)

The formula relating the variation in pressure with loudness of sound:

when L = 115 decibels

P = ?

we will susbtitute 115 for L in the formula above:

Answer:

3

Step-by-step explanation:

mark brainliest pls

Answer:

3,702,856

Step-by-step explanation:

add the three million and then look at the second number you need to add to it and it is seven hundred and two thousand so it should be 702 instead of 720.

Answer:

$300

Step-by-step explanation:

So the equation would look like this since you pay a one time fee on $60 that is the y-intercept, and since you pay $40 per month that is you m or slope constant rate of change etc.

The equation looks like this.

y = 40x + 60

Since it wants to know how much after 6 months plug in 6 where the x is.

y = 40(6) + 60

y = 240 + 60

y = 300

$300

Hope this helps!!

Answer:

$420.00

Step-by-step explanation:

Let x = cost after 9 months. Let y = cost of phone.

x = y + (r · t)

y = $60.00

r = monthly rate of $40.00

t = time period of 9 months

x = $60.00 + [($40.00/month)(9 months)]

The months cancel, leaving dollars.

x = $60.00 + [$360.00] = $420.00

Answer:

$75

Step-by-step explanation:

15 x 4 = 60

50 + 15 = 75

The statement "They are called from an instance of the class." is not true about static methods.

Static methods are class-level methods that can be accessed without creating an instance of the class. They are associated with the class itself rather than specific instances of the class.

This means that static methods can be called directly using the class name, without the need to create an object or instance of the class.

For example, if we have a class called "MathUtils" with a static method called "multiply", we can call the method as:

MathUtils.multiply(5, 10);

We don't need to create an instance of the MathUtils class before calling the multiply method.

Static methods are defined by placing the keyword "static" after the access specifier (e.g., public, private) in the method header. This keyword indicates that the method belongs to the class and can be accessed without creating an instance.

In summary, static methods are not associated with instances of the class and can be accessed directly through the class name. They are not called from an instance of the class.

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Answer:

5 km/h

Step-by-step explanation:

Speed of man in still water = s

Speed of current = c

Speed upstream = s - c

Distance upstream = 24 km

Time upstream = 6 hours

Speed downstream = s + c

Distance downstream = 36 km

Time downstream = 6 hours

Speed Equation

speed = distance/time

distance = speed × time

d = st

We write a distance equation for upstream and a second distance equation for downstream.

Upstream:

d = st

24 = (s - c) × 6

Divide both sides by 6 and switch sides:

s - c = 4        Equation 1

Downstream:

d = st

36 = (s + c) × 6

Divide both sides by 6 and switch sides.

s + c = 6       Equation 2

We now have two equations in two variables. We use equations 1 and 2 as a system of equations.

s - c = 4

s + c = 6

Add the equations to use the addition method.

2s = 10

s = 5

Answer: 5 km/h

Answer:

h<14

Step-by-step explanation:

2h+8>3h-6

2h-3h+8>-6

-h+8>-6

-h>-6-8

-h>-14

h<14

\(\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &\stackrel{millions}{\$12E6}\\ r=rate\to 10\%\to \frac{10}{100}\dotfill &0.10\\ t=\textit{elapsed time}\dotfill &5\\ \end{cases} \\\\\\ A=12E6(1 + 0.10)^{5}\implies A=12E6(1.1)^5\implies A=19326120\)

Answer:

  $19.3 million

Step-by-step explanation:

The demand in 5 years can be found by using the given formula for exponential growth with the given beginning value, growth rate, and time.

  E = B(1 +r)^t

You are given B = 12, r = 0.10, t = 5, so the ending value is ...

  E = 12(1 +0.10)^5 = 12(1.61051) = 19.32612

Demand for electrical services in 5 years will be about $19.3 million per year.

SOLUTION:

Step 1:

In this question,we have the following:

Step 2:

Part A: You want to buy a $ 175,000 and you have a $ 60,000 saved up.

The bank offers a 15-year mortgage at 3.2 % interest.

a) If you expect to pay $ 5,775 in closing costs. What percentage down payment can you afford? Round your answer to the nearest tenth of a percent.

If you saved up $60, 000 and the closing costs is $ 5,775

The difference will be:

Part B :

If you put less than 20% down, you'll need to pay mortgage insurance.

Will you require mortgage insurance? YES or NO

The answer is NO because 31% is far more than 20%

Part C:

What will be the principal be on the loan?

The principal on the loan =

Part D:

What will be your monthly P & I (principal and interest) payment be?

Part E:

In addition to principal and interest, the property taxes will be 1.5 % of the home value per year, the house owners insurance will be $850 per year and the mortgage insurance. What will your total monthly amount be?

Part F:

How much will you pay in total over 15 years in principal and interest?

Part G:

How much interest will you pay in total?

Answer:

Two buddies want to know how far a creek is across. The creek is (3x² - 3x - 3) feet wide.

We know the distance of Friend A from one end of bank and distance of Friend B from another end of the bank and the distance between Friend A and B which is the distance of the rope and we have to calculate the width of the creek.

Distance of rope = Distance of friend A from the one end of the bank + width of creek + distance of Friend B from another end of the bank

6x²- x + 12 = (2x²+2x-2) + width of the creek + (x²+17)

6x²- x + 12 = width of the creek + (2x²+ 2x - 2 + x² + 17)

6x²- x + 12 = width of the creek + ( 3x² + 2x + 15)

width of the creek = 6x²- x + 12 - ( 3x² + 2x + 15)

=  6x²- x + 12 - 3x² - 2x - 15

= 3x² - 3x - 3

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The required value of  P for the given problem is 14 units.

There are six elements of a point usually utilized in  trigonometry.. Their names and shortenings are sine (sin), cosine (cos), digression (tan), cotangent (bed), secant (sec), and cosecant (csc).

We have,

c = 28 units, angle(∅) = 30°

Using sine function to solve the problem.

Sin(∅) = perpendicular/hypothenius

Sin(30°) = P/28

P = 28/2 = 14 units

Thus, required value of P is 14 units.

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Answer:

42

Step-by-step explanation:

Perimeter is \(2l+2w\)

Answer: 42

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