3x - 3 = x -19
Solve for x
So what is the answer

Answer:

127 500

Step-by-step explanation:

Let x be the missing value.

● 510 000 => 100

● x => 25

x = (25*51000)÷100 = 127 500

Answer:

hope it helps

Step-by-step explanation:

25 percent of 510,000 = 127,500

Answer:

-7/45

-4/15+1/9 (two negatives make a plus or addition)

least common multiple of 15 and 9 = 45

 45 is the denominator

15*3=45 , 9*5 = 45

-4*3 = -12 ,1*5 = 5

-12+5 = -7/45

Answer:

-7/45

Step-by-step explanation:

find lowest common denominator: 45 (9 x 5 = 45, 15 x 3 = 45)

\(-\frac{4}{15} = \frac{(4*3)}{(15*3)} =-12/45\\\\\frac{1}{9}=\frac{(1*5)}{(9*5)} =5/45\)

subtracting a negative = addition

\(-\frac{12}{45} +\frac{5}{45}\\\\=\frac{-12+5}{45} \\\\=-\frac{7}{45}\)

Answer:

j = 29.7 inches

Step-by-step explanation:

The following data were obtained from the question:

m = 21 inches

k = 34 inches

Angle L = 60°

j =?

Using Cosine rule, the value of j can be obtained as follow:

j² = m² + k² – 2mk Cos J

j² = 21² + 34² – 2 × 21 × 34 × Cos 60°

j² = 441 + 1156 – 1428 × 0.5

j² = 1597 – 714

j² = 883

Take the square root of both side

j = √883

j = 29.7 inches

Therefore, the value of j is 29.7 inches.

The absolute value of the elasticity coefficient for Toasty Hands' gloves is 394,265.23.

The elasticity coefficient is calculated as follows:

Elasticity coefficient = (Change in demand)/(Change in price) * (Original price)/(Original demand)

In this case, the change in demand is 540,000 - 440,000 = 100,000 pairs. The change in price is 239 - 279 = -40. The original price is $279, and the original demand is 440,000 pairs.

Plugging these values into the formula, we get:

Elasticity coefficient = (100,000)/(-40) * (279)/(440,000) = -394,265.23

The absolute value of the elasticity coefficient is 394,265.23. This means that the demand for Toasty Hands' gloves is elastic, meaning that a small change in price will lead to a large change in demand.

Here is a more detailed explanation of the calculation:

The change in demand is calculated by subtracting the original demand from the new demand. In this case, the new demand is 540,000 pairs, and the original demand is 440,000 pairs. So the change in demand is 540,000 - 440,000 = 100,000 pairs.

The change in price is calculated by subtracting the original price from the new price. In this case, the new price is $239, and the original price is $279. So the change in price is 239 - 279 = -40.

The original price is $279, and the original demand is 440,000 pairs.

Plugging these values into the formula, we get the elasticity coefficient of -394,265.23.

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Answer:

see explanation

Step-by-step explanation:

To prove that BC ≅ AD, that is that BC = AD

You would need to prove the lengths are the same.

Answer:

Option 3

Step-by-step explanation:

We'll prove that their lengths are same by using distance formula.

Based on the two-tangent theorem, the value of x is calculated in the circle as: x = 2.

Based on the two-tangent theorem, if two tangents are drawn from a circle to meet each other at any point outside the circle, then the lengths of the tangents are congruent to each other, that is, they are equal.

Therefore, we would create the following equation based on the two-tangent theorem:

20x + 6 = 10x + 26

Combine like terms:

20x - 10x = -6 + 26

10x = 20

Divide both sides by 10:

10x/10 = 20/10

x = 2

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The smallest possible value of the total number of grapes eaten in the contest is the product of (n-1) and the number of grapes eaten by the child in last place, plus the number of grapes eaten by the winner.

The smallest possible value of the total number of grapes eaten in the contest is (n-1)*(grapes eaten by the child in last place) + (grapes eaten by the winner). So for example, if the winner had eaten 10 grapes and the child in last place had eaten 5 grapes, the total number of grapes eaten in the contest would be (n-1)*5 + 10 = 45.

The smallest possible value of the total number of grapes eaten in the contest is the product of (n-1) and the number of grapes eaten by the child in last place, plus the number of grapes eaten by the winner.

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The distance between the two cars  after three hours is 300 km

Cars a and b leave town at the same time.

The speed of the car that went to south = 80 km/hour

The total distance traveled in three hours = 80 × 3

= 240 km

The speed of the car that went to the west = 60 km/hour

The  total distance traveled in three hours = 60 × 3

= 180 km

The distance between the two car is the hypotenuse of the right triangle

The distance between the two cars after three hours = \(\sqrt{240^2+180^2}\)

= \(\sqrt{57600+32400}\)

= \(\sqrt{90000}\)

= 300 km

Hence, the distance between the two cars  after three hours is 300 km

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Answer:

SLAY

Step-by-step explanation:

UWU

The height of each bar in a histogram represents the frequency (or relative frequency) of the data within that interval.

in a histogram, the data is divided into intervals or bins, which are marked off along the horizontal axis. The height of each bar represents the number of data points (or the percentage of data points, if relative frequency is used) that fall within that interval. The area of each bar is proportional to the frequency of the data within that interval. The histogram is used to display the distribution of a continuous variable and to show the distribution of the data over a certain range. It is useful for identifying patterns and outliers in the data and comparing different sets of data.

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a) The volume is (π/27)y³

b) the  volume is π -(π/27)(3 -h)³.

c) the rate at which the  sand in the lower cone is increasing  is  0.0116 inches per second

a) since we  know The volume of a cone is: V = 1/3πr²h, for the problem here we have h = y and r = y/3, so the volume is : (1/3)π(y/3)²(y) = (π/27)y³

b) Now, we know The empty volume of the lower cone is the same as the volume of the upper cone with y=3, so V = (π/27)(3³) = π , as the sand height is h in the lower cone, so the height of the empty space is (3-h), the volume of the empty space is : (π/27)(3-h)³ and the volume will be the difference between that and the cone volume: π -(π/27)(3 -h)³. c) since the ratio of rates of change in height will be inversely proportional to the surface areas of the sand in each section of the cone, the ratio will be proportional to the square of the distance from the sand surface to the cone tip. For the height of the sand in the lower cone of 1   inch high, its volume is: π -(π/27)(3 -1)³ = π -(8π/27) = 19π/27,  then the volume of the sand in the upper cone is: 3π/4 -19π/27 = 5π/108, the height of the sand in the upper cone is then

(π/27)h³ = π(5/108)

h³ = 5/4 ,h = ∛(5/4), the ratio of the  surface areas in the two cones are  The ratio of surface areas : (2 / ∛(5/4))²,  the rate of decrease is 4/100, rate of increase of sand in lower cone is  (4/100)/((2 / ∛(5/4))²)  =(∛12.5)/200 ≈ 0.0116

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Answer:

67.5

Step-by-step explanation:

135/2=67.5

answer is $67.50

The actual time is `7:16`.

Let's consider the difference between the two times.

Then we can set up an equation to solve for the actual time difference.`12:35 - 12:30 = 0:05`

We have 5 minutes as a difference between these two times.

Since the clock in Sri's car gains time at a constant rate, we can divide the difference by 5 and find out how many minutes Sri's car clock runs fast per minute.

That would be 1 minute per 5 minutes, or 1/5 minutes per minute.`7:00 - 12:35 = -5:35`

The car clock is running fast, so we will subtract the `5/5` or `1` minute from the car clock time for every minute of the actual time.

We can convert the difference to minutes and add the number of minutes to `12:35` to get the actual time.`

5 x (1/5) = 1`

The clock is running fast at the rate of `1` minute per `5` minutes.`-5:35 ÷ 1 = -5.5833`

The time difference in minutes is `-5:35`.

Therefore the actual time is `12:35 - 5.5833 = 6:76 ≈ 7:16`.Therefore, the actual time is `7:16`.

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Answer:426m^2

Step-by-step explanation:

The probability of randomly selecting an individual in this community who has red hair or is​ left-handed is 0.23

The probability of an event refers to the likelihood of the event occurring, expressed as a number between 0 and 1.

In other words, the probability of the union of two events can be expressed as follows:

P(A or B) = P(A) + P(B) - P(A and B)

Where A represents the event of having red hair, B represents the event of being left-handed, and P(A and B) represents the probability of the intersection of the two events. In this case, P(A) = 0.08 and P(B) = 0.15.

Therefore, to find the probability of a randomly selected individual in this community who has red hair or is left-handed, we would need to know the probability of the intersection of the two events, P(A and B).

This would allow us to subtract it from the sum of the individual probabilities, P(A) + P(B), to find the total probability of having red hair or being left-handed.

=> P(A) + P(B) = 0.08 + 0.15 = 0.23

In conclusion, to find the probability of having red hair or being left-handed in this community, we would need to know the probability of the intersection of the two events, P(A and B).

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Answer:

8+8+8+8

Step-by-step explanation:

it can't be any negatives because the questions asking how many ladder rungs he climed not how far he went down. It can't be the first one cause Yan did not climb 16 rungs.

Answer:

Answer is B

Step-by-step explanation:

Answer:the answer is A

Step-by-step explanation:

The step is

Real number - rational(irrational)_ - integer - whole - then natural

The true statement regarding number sets are b. all irrational numbers are real numbers.

Irrational numbers are those numbers which have a non-repeating, non-terminating pattern after decimal place.

According to the given statements we have to determine which is true.

a. all integers are not whole numbers as 0 contains in the set of whole numbers but not in the set of integers.

b. all irrational numbers are real numbers this is a true statement because all the real numbers consist of rational and irrational numbers.

We don't need to check other options because we have been asked which of the following is true not which of the following is/are true.

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Answer: 50 i think

Step-by-step explanation:

Answer:

Step-by-step explanation:

Simple interest formula:

A = P(1 + rt)

   A = the future value of the investment/loan, including interest

   P = the principal investment amount (the initial deposit or loan amount

   I = Interest Amount

   r = Rate of Interest per year in decimal; r = R/100

   t = Time Period involved in months or years

P = $1000

r = 6% = 6/100 = .06

t = 20

A = P(1 + rt)

A = 1000(1 + (.06*20))

A = 1000 (1 + 1.2)

A = 1000 (2.2)

A = $2200

Compounded monthly:

A = P(1 + \(\frac{r}{n}\)\()^{nt}\)

   A = the future value of the investment/loan, including interest

   P = the principal investment amount (the initial deposit or loan amount)

   r = Rate of Interest per year in decimal; r = R/100

   n = the number of times that interest is compounded per unit t

   t = Time Period involved in months or years

P = $1000

r = 6% = 6/100 = .06

n = 12

t = 20

A = P(1 + \(\frac{r}{n}\)\()^{nt}\)

A = 1000 ( 1 + \(\frac{.06}{12}\) \()^{12*20}\)

A = 1000 (1 + .005\()^{240}\)

A = 1000 ( 1.005\()^{240}\)

A = 1000 (3.3102)

A ≈ $3310.20

The balance after 20 years will be 1,300,000cents

The balance in the account after 20 years if compounded monthly is 12,173,957,374cents

The formula for calculating simple interest is expressed as:

SI = PRT

P is the amount invested = $1000

R is the rate (in decimal) = 6% = 0.06

T is the time in years = 20 years

Get the simple interest

SI = 1000 * 0.6 * 20

SI = $12,000

The balance after 20 years will be $1,000 + $12,000 = $13,000

The compound amount formula is expressed as:

A = P(1 + r/t)^nt

A = 1000(1+0.6/12)^12(20)

A = 1000(1+0.05)^240

A = 1000(1.05)^240

A = 121,739,57374cents

Hence the balance in the account after 20 years is 12,173,957,374cents

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Answer:

Below

Step-by-step explanation:

Standard charge = $ 10

  plus hourly charge   4 m    where 'm = hours

10 + 4m    needs to be at LEAST $ 50

10 + 4m ≥ 50      which can be re=arranged   Subtract 10 from both sides

      4m ≥ 40        now you can divide both sides by 4

       m ≥ 10   hours

Answer:

It’s definitely c

Step-by-step explanation:

Lets just say that these are simple for me?...

Answer:

the ratio of boys to the total students is 15:27

Step-by-step explanation:

Since we know there are 15 boys and 12 girls, we can add those to know there are 27 total students. Therefore, the ratio it 15:27

Answer:

15:27

=5:9 (if answer is needed in simplest form)

Step-by-step explanation:

B  :  G   : Total

15 :   12 : 15+12=27

hence boys to total is 15:27

                                    =5:9 (if answer is needed in simplest form)

Step-by-step explanation:

I think it's 8.9932×10⁶

Answer:

8,993,200

Step-by-step explanation:

10^3 is 1000

8993.2 * 1000

=

8,993,200

To calculate the probability that the proportion of couples in the sample who are racially or ethnically mixed will be greater than .10, we can use a normal approximation to the binomial distribution.

First, we need to calculate the mean and standard deviation of the proportion of mixed couples in a sample of 200.

The mean is calculated as:

mean = n * p

where n is the sample size (200) and p is the proportion of mixed couples in the population (assumed to be .10).

So: mean = 200 * .10 = 20

The standard deviation is calculated as:

standard deviation = sqrt(n * p * (1-p))

where n is the sample size (200), p is the proportion of mixed couples in the population (assumed to be .10), and sqrt is the square root function.

So: standard deviation = sqrt (200 * .10 * .90) = sqrt (18) = 4.24

We can use the standard normal distribution to calculate this probability. The standard normal distribution is a normal distribution with a mean of 0 and a standard deviation of 1. We can convert our random variable X to a standard normal variable using the following formula:

Z = (X - mean) / standard deviation

So: Z = (X - 20) / 4.24

To find the probability that X is greater than .10, we can use a standard normal table or calculator to find the probability that Z is greater than (X - 20) / 4.24

This probability is 0.48, so the probability that the proportion of couples in the sample who are racially or ethnically mixed will be greater than .10 is 48%.

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Answer:

Step-by-step explanation:

Reza Nazari, ‎Ava Ross · 2019 · ‎Study Aids

18) Choice D is correct sum of terms sum of numbers average ... –2(2x + 5y = 11) , –4x – 10y = —22 4x – 2y = –14 4x – 2y = –14 = –12y = —36 = y = 3 Plug in ...

Statement: ∠ABC ≅ ∠EDC

Reason: Given (or Angle equality postulate)

In line 5, we can state that ∠ABC is congruent to ∠EDC because it is given in the paragraph proof. The reason for this statement is the "Given" or "Angle equality postulate," which states that if two angles are given to be congruent, then they are congruent.

Statement: Triangle ABC and Triangle EDC are congruent.

Reason: ASA (Angle-Side-Angle) congruence criterion.

In a two-column proof, each line consists of a statement and a reason. To complete the proof, we need to determine the appropriate statement and reason for line 5.

The given paragraph proof should provide information leading to the conclusion that Triangle ABC and Triangle EDC are congruent. The most likely reason for this congruence would be the ASA (Angle-Side-Angle) criterion.

The ASA criterion states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.

Therefore, in line 5, we can state "Triangle ABC and Triangle EDC are congruent" and provide the reason as "ASA (Angle-Side-Angle) congruence criterion." This indicates that the two triangles are congruent based on the given information and the ASA criterion.

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As per the formula of surface area of cube, the length of the cube is 5.45 meters.

The general formula to calculate the surface area of the cube is calculated as,

=> SA = 6a²

here a represents the length of cube.

Here we know that  the side of a cube with a surface area of 180 square meters than a cube with the surface area of 120 square meters.

When we apply the value on the formula, then we get the expression like the following,

=> 180 = 6a²

where a refers the length of the cube.

=> a² = 30

=> a = 5.45

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The area of the side of the cone is 100.53 cm² and the area of the cricle base is 50.27 cm² while the total surface area is  150.8 cm².

From the diagram, we are given:

base radius (r) = 4cm

slant height (l) = 8cm

(a) To find the area of the side of the cone, we need to find the slant height and the base perimeter.

Using the Pythagorean theorem, we can find the height of the cone:

height = √(l² -r²)

      = √(8² - 4²)

      = √48

      = 4√3 cm

The base perimeter is simply the circumference of the circle with radius 4 cm:

base perimeter = 2πr

              = 2π(4)

              = 8π cm

Now we can use the formula for the lateral surface area of a cone:

lateral surface area = 1/2 (base perimeter) (slant height)

                    = 1/2 (8π) (8)

                    = 32π cm²

                    = 100.53 cm²

Therefore, the area of the side of the cone is approximately 100.53 cm².

(b) The area of the circle base can be found using the formula:

base area = πr²

         = π(4)²

         = 16π cm²

         = 50.27 cm²

Therefore, the area of the circle base is approximately 50.27 cm².

(c) The total surface area of the cone is the sum of the lateral surface area and the base area:

total surface area = lateral surface area + base area

                  = 32π + 16π

                  = 48π cm²

                  ≈ 150.8 cm²

Therefore, the total surface area of the cone is approximately 150.8 cm².

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Answer:

#1:  A

#2:  2

I apologize if its wrong

Answer: A, 5

Explanation:

Simply create an slope-intercept equation using the given information. The initial fee is $5, which is the y-intercept and $2.75 every stop, which is our slope. The equation is y = 2.75x+5. Since this is an inequality and she's looking for the most amount of stops she can take before maximizing her budget, it needs to be a less than or equal to sign. Change the equation to be 5+2.75S≤21. Subtract 5 from both sides to get 2.75S≤16. Divide 2.75 to both sides to get S≤5.82. This would be estimated to around 5 stops, which would be the largest amount of stops.