need help answering these, with work please

Answer:

1900 km

Step-by-step explanation:

train = 1050km

bus = 200 less than train or 1050-200 = 850

1050+850=1900

Answer:

625, just got it right

Step-by-step explanation:

Answer:

We conclude that there is NOT a proportional relationship between the distance the blimp travels and the time it travels.

Step-by-step explanation:

We know if y varies directly with x, we get the equation

y ∝ x

y = kx

k = y/x

where k is called the constant of variation.

In our case we are given:

A blimp travels 255 feet in 1/2 minute

here:

y = 255, and x = 1/2 = 0.5

so substituting y = 255 and x = 0.5 in the equation

k = y/x

k = 255 / 0.5

k = 510

A blimp travels 510 feet in 1/6 minute

here:

y = 510 , and x = 1/6

so substituting y = 510 and x = 1/6 in the equation

k = y/x

k = [510] / [1/6]

k = 3060

A blimp travels 3,060 feet in 1 minute

here

y = 3,060, and x = 1

so substituting y = 3,060 and x = 1 in the equation

k = y/x

k = 3,060 / 1

k = 3060

HERE IS THE VARIATION OF THE CONSTANT OF VARIATION:

A blimp travels 255 feet in 1/2 minute

k = 510

A blimp travels 255 feet in 1/2 minute

k = 3060

A blimp travels 3,060 feet in 1 minute

k = 3060

It is clear that the constant of variation does not remain constant.

Therefore, we conclude that there is NOT a proportional relationship between the distance the blimp travels and the time it travels.

Answer:

I think its 8

Step-by-step explanation:

The probability that the wheel stops on a white slice, given that the wheel stops on a number less than 9 is 1/2.

We have given that

A spinner with 8 equally size slices numbered 1 to 8 and some slices are white and other gray in colour .

Total possible outcomes = 8 = {1,2,3,4,5,6,7,8}

we have to calculate probability that the wheel stops on a white slice, given that the wheel stops on a number less than 9?

let consider two events

A : wheel stops at white

B: wheel stops on white slice and number less than 9

favourable cases for event A = 4

= { 8,4,2,1}

P( wheel stops at white colour)

= favourable cases/total possible outcomes

= 4/8 = 1/2

favourable cases for event B = 4

= {1,2,4,8}

Probability ( wheel stops white slice with numbered less than 9)= white slice with number less than 9/ total slices numbered less than 9

= 4/8 = 1/2

Hence, the required probability is 1/2.

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Complete question:

spinner has 8 equally sized slices numbered from to 1&8 Some are white and some are grey, as shown below. 1 2 3 4 5 6 7 8 . Answer the following questions Write each answer a fraction. The wheel will be spun and will stop on a slice at random (a) What Is the probabllity that the wheel stops on grey slice, glven that the (b) wheel stops on &n even-numbered slice?

Combining three popular technologies, blockchain: keys for cryptography. a network of peers that uses a shared ledger. a method of computation for storing exchanges and records.

Blockchain technology sets itself apart from conventional networks by offering transparency and integrity.

Integrity: When a user retrieves data from a network, he or she may be sure that the data is accurate and unaffected.

Transparency: Every user on the network may confirm any modifications made to the blockchain technology.

The read, write, create, and update operations to databases are provided by the traditional network, however the blockchain technology only enables users to attach the structure and already stored data cannot be changed.

When a new transaction is created, the blockchain makes sure to record it and perform transaction validation.

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√131 lies between 11 and 12.

The numbers that include natural numbers and zero are called whole numbers.

Given is the square root of 131.

We can write the square root of 131 as -

√131 = 11.45

We can write the whole numbers as -

11 < 11.45 < 12

Therefore, √131 lies between 11 and 12.

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The value of Q using Excel will be approximately 6653.96. This is obtained using simple algebraic equations.

To figure out the value of Q in Excel, you can use a simple algebraic equation rearrangement and then solve for Q directly. In this case, you have the equation 263245 = 37.07Q + 10.04 * 0.25 * Q. By combining the terms on the right-hand side, you get 263245 = 37.07Q + 2.51Q, which simplifies to 263245 = 39.58Q. To find the value of Q, you can divide both sides of the equation by 39.58. The value of Q can be calculated as 263245 divided by 39.58, which is approximately 6653.96.

In Excel, you can directly calculate the value of Q by entering the formula in a cell. Here are the steps:

1. In a cell, enter the formula: =263245/39.58.

2. Press Enter, and Excel will calculate the value of Q.

The value of Q will be displayed in the cell where you entered the formula, and in this case, it will be approximately 6653.96.

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Answer:

stocks, bonds, mutual funds, and collectables

Step-by-step explanation:

Answer:

Ten times.

Step-by-step explanation:

If you add 2.5 ten times to 50, you will get 75. Therefore, Oliver will need to visit the theater 10 times to get 75 points.

Answer:

10

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

8 * 3/4 = 24/4  = 6 WATER BOTTLES

Answer:

b

Step-by-step explanation:

The range of the function g(x) = 3|x-1| - 1 by evaluation is; [-1,00].

From the taks content, the function given is;

Hence, it follows that the lowest possible value of y is -1 by means of the absolute value sign in the equation.

The range is therefore; [-1, 00].

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i. 2x-6=7x+7 ii. 2x-6-7x+7 iii. 2x-6+7x+7

2x=7x+13 -5x+1 9x+1

0=5x+13

-13=5x

x=-13/5

Answer:

Hello,

Answer A: 35 dimes and 5 nickels

Step-by-step explanation:

Let say

d the number of dimes

n the number of nickels

There are 25 coins: d+n=25

Total value : 0.1*d+0.05n=2.25

\(\left\{\begin {array} {ccc}d+n&=&40\\10*d+5*n&=&225\ multiplied\ by\ 100\\\end {array}\right.\\\\\\\left\{\begin {array} {ccc}n&=&40-d\\10*d+5*(40-d)&=&225\\\end {array}\right.\\\\\\\left\{\begin {array} {ccc}5*d&=&225-200\\n&=&40-d\\\end {array}\right.\\\\\\\left\{\begin {array} {ccc}5*d&=&25\\n&=&40-5\\\end {array}\right.\\\\\\\left\{\begin {array} {ccc}d&=&5\\n&=&35\\\end {array}\right.\\\\Proof:\\5*0.1+35*0.05=0.5+1.75=2.25\\\)

The best estimate for the amount of cost A when there is expected to be 8,570 units would depend on the cost per unit of A.

Without knowing the cost per unit, it is not possible to accurately estimate the total cost of A for 8,570 units.
To find the total cost of A for 8,570 units, you would multiply the cost per unit of A by the number of units (8,570). For example, if the cost per unit of A is $2, then the total cost of A for 8,570 units would be $2 x 8,570 = $17,140.
Therefore, without knowing the cost per unit of A, it is not possible to provide the best estimate for the amount of cost A when there is expected to be 8,570 units.

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Answer:

Gretchen has mostly more than Manuel.

Step-by-step explanation:

Plz mark as Brainliest!

ANSWER

• A = 55.5°

• B = 45.5°

• C = 79.1°

EXPLANATION

The lengths of the three sides of a triangle are given. We have to use the Law of Cosines to find the measures of the interior angles,

Solving each of the equations above for the angles, A, B, and C, we can find their measures,

Replace the known values and solve,

Repeat for angle B,

And for angle C,

Hence, the three interior angles of this triangle, rounded to the nearest tenth of a degree, are:

• A = 55.5°

• B = 45.5°

• C = 79.1°

Rays and angles are related because when two rays share a common endpoint, they form an angle

An angle's measure serves as its definition; it is independent of the angle's side lengths. A ray is a segment of a line where one point is fixed and the other has no end.

The combination of two rays with the same endpoint is called an angle. The vertex of the angle is the common endpoint of the rays, which are referred to as the sides of the angle. The distance between the rays is how an angle is measured.

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Complete question

How are rays and angles related?

Answer:

725.95

Step-by-step explanation:

Answer:

Hi, you answer would be $725.95

Step-by-step explanation:

First multiply 129.95 and 5, which equals $649.75. Now you add $649.75 and 76.20, which you would get your answer $725.95, hope this helps:)

E) 10 minutes. At the local fast food joint, cars arrive randomly at a rate of 12 every 30 minutes, which is equivalent to a rate of 0.4 cars per minute (12 arrivals / 30 minutes). The service time for each car averages 2 minutes per arrival and follows an exponential distribution.

To find the average time in the queue for each arrival, we can use Little's Law. Little's Law states that the average number of customers in a system (L) is equal to the arrival rate (λ) multiplied by the average time a customer spends in the system (W). In other words, L = λW.

In this scenario, we are given the arrival rate (λ) and the service time (μ), but we want to find the average time a customer spends in the system (W). To do this, we can use the formula for the average time in an M/M/1 queue: W = 1 / (μ - λ).

Plugging in the values, we get W = 1 / (0.5 cars/minute - 0.4 cars/minute) = 1 / 0.1 cars/minute = 10 minutes. Thus, the average time in the queue for each arrival is 10 minutes.

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Answer:

The type of number that represents -4/2 is:

Choice B) Integer

Choice C) Rational

Step-by-step explanation:

The number -4/2 is an integer because it represents a whole number (-2) and it is also a rational number because it can be expressed as a fraction of two integers.

-4/2 is an :

Solution:

Before we make any decisions about the type of number -4/2 is, let's simplify it first.

It's the same as -2. Now, let's familiarize ourselves with the sets of numbers out there. Where does -2 fit in?

______________

This set incorporates only positive numbers and zero. So -2 doesn't belong here.

This set incorporates whole numbers and negative numbers. So -2 belongs here.

This set has integers, fractions, and decimals. So -2 does belong here too.

This is a set for numbers that cannot be written in fraction form (a/b, where b ≠ 0). So -2 doesn't belong here.

-4/2 belongs in the integer and rationals set.

The mean acrylamide level in nanograms/gram for the given data is 320.

To calculate the mean, we sum up all the data values and divide the sum by the number of values:

(346 + 296 + 334 + 276 + 248) / 5 = 1500 / 5 = 300

Therefore, the mean acrylamide level is 300 nanograms/gram.

To calculate the **deviation from the mean** for each data value, we subtract the mean from each value:

346 - 300 = 46

296 - 300 = -4

334 - 300 = 34

276 - 300 = -24

248 - 300 = -52

The deviations from the mean for each data value are as follows:

46, -4, 34, -24, -52

The positive deviations indicate values higher than the mean, while the negative deviations indicate values lower than the mean.

Understanding the deviations from the mean allows us to assess the variability of the acrylamide levels within the dataset. Positive deviations suggest higher acrylamide levels compared to the mean, while negative deviations indicate lower levels. Analyzing the spread of these deviations can provide insights into the consistency or variability of acrylamide content among different brands of biscuits.

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Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I did this.

Answer:

x = 0, x = 5

Step-by-step explanation:

x² - 5x = 0 ← factor out x from each term

x(x - 5) = 0

equate each factor to zero and solve for x

x = 0

x - 5 = 0 ⇒ x = 5

Answer:

Step-by-step explanation: why do u need 8 balls to move 1 lolwut

The car travelled an arc length of 7.85 ft (approx) to the nearest hundredth. Therefore, the option (B) 4.31 feet is incorrect. The correct option is (D) 6.63 feet.

Given, d = 20 ft Formula used: We know that Arc Length (S) = rΘ where Θ is in radians. In degrees, the formula can be modified as S = (ΠrΘ)/180.Here, d = 20 ft or r = 10 ft. Since 20 ft is the diameter, we divide it by 2 to get the radius. Now, we are to calculate the arc length.

To calculate arc length, we need Θ.Let’s try to find Θ.We know that the circumference of the circle is C = 2Πr. Here, the diameter is 20ft. Thus, r = 20/2 = 10 ft.

Circumference of the circle, C = 2Πr= 2Π × 10= 20ΠThe distance travelled by the car is 1/8th of the circumference, as it has to travel one-eighth of the circle.

1/8th of the circumference = (1/8)×(20Π) ft= 2.5Π ft≈ 7.85398 ft (to the nearest hundredth). Thus, the car travelled an arc length of 7.85 ft (approx) to the nearest hundredth.

Therefore, the option (B) 4.31 feet is incorrect. The correct option is (D) 6.63 feet.

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Answer:

expression is 20. +20...