Beth sold half of her comic books and then bought nine more she now has 28 how many did she have to start with

1-1/4  divided by 2/5 = 25/8 ( 25 over 8)



Hope this helps, Have a good evening:), ~Nana!~

Answer:

180

Step-by-step explanation:

A 15-year mortgage requires 180 monthly payments.

The Patels took out a 15-year mortgage. To determine the number of monthly payments, we need to consider the total number of payments over 15 years. Since there are 12 months in a year, the number of monthly payments for a 15-year mortgage would be: 15 years x 12 months = 180 monthly payments.

She will pack 1 crate that holds 1,000 and 25 stacks that hold 10.
1,250-1,000=250
250÷10=25

Shawna can pack an order of 1,250 blocks using 1 crate for the thousands and 25 stacks for the tens.

To pack 1,250 blocks using crates and stacks, we need to break down the total number of blocks into thousands and tens:

Step 1: Determine the number of crates (each crate holds 1,000 blocks). 1,250 blocks divided by 1,000 equals 1 crate (1,000 blocks).Step 2: Subtract the blocks already packed in crates: 1,250 - 1,000 = 250 blocks.Step 3: Determine the number of stacks (each stack holds 10 blocks). 250 blocks divided by 10 equals 25 stacks (250 blocks).Therefore, Shawna can pack the order with 1 crate and 25 stacks.

one would be   2pi - 5pi/18 = 31pi/18
another positive one is 31pi/18 + 36pi/18  = 67pi/18
and the negative angle is -5pi/18 - 36pi/18  = -41pi/18

The answer is  b

Final answer:

To find the coterminal angles with -5π/18, we have to add or subtract multiples of 2π. By doing so, we find out that the coterminal angles are −23π/18, 13π/18, and -41π/18. So, the correct option is c.

Explanation:

To find angles that are coterminal with a given angle, we have to add or subtract multiples of 2π. This is because a full rotation around the unit circle is 2π radians. Angles that differ by an exact multiple of 2π radians are considered as coterminal.

Therefore, we can get the coterminal angles of −5π/18 by adding and subtracting multiples of 2π. This gives us the angles, −23π/18 and 13π/18 (for positive angles) and −41π/18 (for a negative angle). Thus, the option (c) −23π/18, 13π/18, 31π/18 is correct.

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If you know that a full marathon is about (1.4X10^5) feet, then you can just divide that by 2. To get the most accurate answer on a calculator make sure to put that value in parenthesis before dividing it. I got 70,00. Hope this helped!

Answer:

Length of half marathon = 7 x 10⁴ feet

Step-by-step explanation:

Length of marathon is given as 1.4 x 10⁵ feet

            Length of full marathon = 1.4 x 10⁵ feet

Length of half marathon is half the length of full marathon.

[tex]\texttt{Length of half marathon = }\frac{\texttt{Length of full marathon}}{2}\\\\\texttt{Length of half marathon = }\frac{1.4\times 10^5}{2}=0.7\times 10^5\\\\\texttt{Length of half marathon = }7\times 10^4feet[/tex]

Length of half marathon = 7 x 10⁴ feet

4 divides into 29 7 times, leaving a remainder of 1.  Write 7 over the 8 and bring down the remainder (1), and also bring down the next integer (8).  Divide 4 into 18; the result is 4 with a remainder of 2.

So now the quotient is 74 with a remainder of 2.

You could also write this as 74 2/4, or 74 1/2.

Here we're discussing long division by integers.

you can solve using long division:

       74
4 )298
  - 28
-----------
       18
     - 16
-----------
         2

-hope this was what you're looking for and it helps :)

Distance to travel = 20 m.
Let us determine the time, t, that each participant took to complete 20 m.

Barbara:
Average speed = (3 m)/(2 s) = 1.5 m/s
t = 20/1.5 = 13.3 s

Mark:
t =  5 s

Carlos:
y = x + 1
where
y = 20 m
x = time, t
Therefore
t =x = y - 1 = 20 - 1 = 19 s

Summary:
Barbara:  13.3 s
Mark:       5 s
Carlos:     19 s

Answer:
The winner is Mark

Final answer:

In a 20 meter race, Mark would win.

Explanation:

In a 20 meter race, Mark would win. Mark finished the race in 5 seconds, while Barbara took 2 seconds to pedal every 3 meters. Carlos' distance from the starting line can be represented by the equation y = x + 1, where x is the time in seconds. When x = 5, Carlos' distance would be 5 + 1 = 6 meters, which is less than 20 meters.

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she will have a total of $180

The answer is:  $ 180 .
_____________________________________
Note:
________________________________

10 * $5  = $50 .

13 * $10 = $130 .

$130 + $ 50 = $ 180.
________________________________ 
 

Hello. All these fractions displayed are already simplified. Do you need the decimal point of each simplified?let me know.

The corporation who, since 1912, has worked to promote trust between consumers and sellers by collecting and publishing information related to the marketplace is known as Better Business Bureau.

The Better Business Bureau was created in 1912. Its goal is to promote trust in the market place. It does this by rating business and providing a Code of Business Practices that businesses can follow. The Bureau is a nonprofit organization that is not affiliated with the government.

Final answer:

To find the lower sum, divide the interval into subintervals, evaluate the function at the left endpoint of each subinterval, and sum up the areas of the rectangles with those minimum values as heights.

Explanation:

To approximate the area of the region using lower sums, we need to calculate the lower sum by dividing the interval into subintervals of equal width, finding the minimum value of each subinterval, and summing up the areas of the rectangles with those minimum values as heights.

In this case, we have the function y = sqrt(1-x^2). Let's say we divide the interval into n subintervals. The width of each subinterval would be (b-a)/n, where a and b are the lower and upper limits of the interval.

To find the minimum value of each subinterval, we can evaluate the function at the left endpoint of each subinterval. Let's call these points x1, x2, x3,..., xn. Then, the lower sum is given by: Lower Sum = (b-a)/n * (f(x1) + f(x2) + f(x3) + ... + f(xn)).

To check if the lower sums you calculated are correct, make sure you are using the left endpoints of the subintervals and that the calculation is accurate.

Focusing on the '55' in the middle of this given number:  the first 5 does indeed represent 10 times the second 5.  Brianna is correct.

8x-20 is the simplifyed version
(6)(2x)+(6)(−3)+(−2)(2x)+(−2)(1)

The value of x is 5/2 for expression 6(2x-3)-2(2x+1)

What is Expression?

An expression is combination of variables, numbers and operators.

The given expression is 6(2x-3)-2(2x+1)

By applying distributive property we can simplify this.

x is the variable, plus and minus is the operators.

6(2x-3)-2(2x+1)

12x-18-4x-2

Add the terms with variable x

12x-4x-18-2

8x-20

8x=20

Divide both sides by 8

x=20/8

x=5/2

Hence, the value of x is 5/2 for expression 6(2x-3)-2(2x+1)

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33 + 10 + 12 - 15 - 33 = 7°F

Answer:

Fall 7°F

Step-by-step explanation:

3.14 is the answer
hope it helped!

pi is equal to 3.14159265....

or just 3.14

3.14 is your answer

hope this helps

Final answer:

To find the probability that the drone will fly less than 4.66 hours, calculate the z-score and look up the corresponding probability in the standard normal distribution. A z-score of -2.5 indicates a probability of about 0.62%.

Explanation:

To calculate the probability that the drone will fly less than 4.66 hours, we need to convert the flight time of 4.66 hours into a z-score. The z-score represents how many standard deviations an element is from the mean.

The formula to calculate the z-score is:

Z = (X - μ) / σ

Where:
X = Value we're interested in (4.66 hours)
μ = Mean (4.76 hours)
σ = Standard deviation (0.04 hours)

Calculating the z-score:

Z = (4.66 - 4.76) / 0.04 = -2.5

Now, we look up the z-score in the standard normal distribution table or use a calculator to find the probability to the left of that z-score, which gives us the probability that the drone will fly less than 4.66 hours. Typically, a z-score of -2.5 corresponds to a probability of approximately 0.0062 or 0.62%.

Therefore, the probability that the drone will fly less than 4.66 hours is about 0.62%.

so false would be your answerA sample of n = 4 scores has a mean of M = 8. If one new score with a value of X = 3 is added to the sample, what will be the value for the new mean?A. M=7.0A normal distribution has a mean of μ = 70 with σ = 12. If one score is randomly selected from this distribution, what is the probability that the score will be greater than X = 58?A. 0.8413On an exam with μ = 52, you have a score of X = 56. Which of the following values for the standard deviation would give you the highest position in the class distribution?σ = 2Under what circumstances is a score that is 15 points above the mean an extreme score relatively far from the mean?When the population standard deviation is much smaller than 15For a sample of n = 16 scores, how many scores are used to calculate the sample variance?D. 16A normal distribution has a mean of μ = 80 with σ = 20. What score separates the lowest 30% of the distribution from the rest of the scores?B. X=69.6A normal distribution has a mean of μ = 100 with σ = 20. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 80 and X = 100?B. 0.1587If sample variance is computed by dividing SS by df = n - 1, then the average value of the sample variances from all the possible random samples will be ____ the population variance.C. exactly equal toA population of N = 6 scores has ΣX = 12 and ΣX2 = 54. What is the value of SS for this population?C. 30One sample has n = 4 scores and M = 10. A second sample has n = 6 scores and M = 5. If the two samples are combined, then what is the weighted mean for the combined sample?C. 70/10 = 7.0A jar contains 10 red marbles and 30 blue marbles. What is the probability of randomly selecting a red marble from the jar?B. 10/40After every score in a sample is multiplied by 3, the mean is calculated and found to be M = 21. What was the mean for the original scores?A. 7John drives to work each morning and the trip takes an average of μ = 38 minutes. The distribution of driving times is approximately normal with a standard deviation of σ = 5 minutes. For a randomly selected morning, what is the probability that John's drive to work will take less than 35 minutes?D. 0.2743Scores on the SAT form a normal distribution with a mean of μ = 500 with σ = 100. If the state college only accepts students who score in the top 60% on the SAT, what is the minimum score needed to be accepted?A. X=475Which of the following symbols identifies the population standard deviation?C. σA sample of n = 100 scores is selected from a population with μ = 80 with σ = 20. On average, how much error is expected between the sample mean and the population mean?C. 2 pointsWhat happens to the standard error of M as sample size increases?B. it decreasesIf all the possible random samples with n = 36 scores are selected from a normal population with μ = 80 and σ = 18, and the mean is calculated for each sample, then what is the average of all the sample means?C. 80A sample of n = 4 scores has a standard error of 10 points. For the same population, what is the standard error for a sample of n = 16 scores?C. 5A population has μ = 50. What value of σ would make X = 55 a more central, representative score in the population?D. σ = 20A researcher measures eye color for a sample of n = 50 people. Which measure of central tendency would be appropriate to summarize the measurements?C. modeA distribution is positively skewed. Which is the most probable order, from smallest to largest, for the three measures of central tendency?B. mode, median, meanFor the population of scores shown in the frequency distribution table, the mean is ____.


X f
5 2
4 1
3 3
2 2
1 2D. 29/10 = 2.90Samples of size n = 9 are selected from a population with μ = 80 with σ = 18. What is the standard error for the distribution of sample means?C. 6For a particular population, a sample of n = 9 scores has a standard error of 8. For the same population, a sample of n = 16 scores would have a standard error of ____.B. 6For a sample with M = 80, a score of X = 88 corresponds to z = 2.00. What is the sample standard deviation?B. 4You have a score of X = 65 on a math exam. The mean score for the class on the exam is μ = 70. Which of the following values for the standard deviation would give you the most favorable position within the class?D. σ = 10A true/false test has 100 questions. Using the normal approximation to the binomial distribution, what is the probability of getting more than 55 correct by just guessing?B. p(X > 55.5)What term is used to describe the shape of a distribution in which the scores pile up on the left-hand side of the graph and taper off to the right?B. positively skewedFor a population with μ = 80 and σ = 10, what is the X value corresponding to z = -0.50?C. 75What is the value of SS (sum of squared deviations) for the following population? 
Population: 2, 3, 0, 5A. 13

The statement "a sample of n = 9 scores is randomly selected from a population with m = 80 and s = 9 is false.

What is a normal distribution?

It's the probability curve of a continuous distribution that's most likely symmetric around the mean. On the Z curve, at Z=0, the chance is 50-50. A bell-shaped curve is another name for it.

It is given that:

A sample of n = 9 scores is randomly selected from a population with m = 80 and s = 9.

As we know,

Z = (x - u)/s

Z = 3

x = 83

s = 9

3 = (83 - u)/9

27 = 83 - u

u = 83 - 27 = 56

Thus, the statement "a sample of n = 9 scores is randomly selected from a population with m = 80 and s = 9 is false.

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The answer to your question is that she can make 17 trains of 10 cubes so the answer is 17 

Answer:

2/35

Step-by-step explanation:

The only way we can solve this problem is to assume that the given complement of pieces is of a full kit before one went missing. The total number of pieces in the kit is ...

... 9 + 8 + 12 + 6 = 35

Of those, 2 are red with four holes. Thus the probability that a randomly chosen piece is red with 4 holes is 2 out of 35, or 2/35.

____

If this is the kit contents after the piece went missing, we have no way of knowing the color or hole count of the missing piece. If the kit is supposed to contain 13 blue pieces, for example, then the probability is zero that the missing piece is red.

Final answer:

The probability of a specific event is determined by dividing the number of ways this event can occur by the total number of possible outcomes. In this case, the probability of selecting a red piece with four holes from the toy building kit is the ratio of the quantity of four-holed red pieces to the total quantity of pieces in the kit.

Explanation:

The question refers to the probability of a specific event in a set of outcomes related to a toy building kit. In this case, the event is selecting a red piece with four holes. Probability can be defined mathematically as (Number of ways event can occur)/(Total number of outcomes). Specifically, in your case, you would calculate the number of four-holed red pieces within the whole toy building kit. Divide that by the total number of pieces in the entire kit, including the missing one.

Using an example with different objects for clarity, consider if there are 10 pieces in the set, and 3 of them are four-holed red pieces, the probability of the selected piece being a four-holed red piece would be 3/10 or 0.3 (once converted to decimal form). This method can now be applied to your toy building set once you identify the total number of pieces in the set and the number of these that are four-holed red pieces.

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which ones which interger

goes up five everytime

i see a pattern that each number increases by 5

Yes the treasury can determine whether the gold bar is really weighing 500 ounces.

We can use the equation:

7 x + 11 y = 500

where x is the amount of the 7 ounce weights while y is the amount of 11 ounce weights.

 

We know that x and y should be whole numbers therefore this is solved through trial and error.

By trial and error I got:

x = 7 and y = 41

So that;

7 * 7 + 11 * 41 = 500

49 + 451 = 500

500 = 500

 

Hence they can use 41 11-ounce weights and 7 7-ounce weights to test

l=1.5w
p=2l+2w
2(1.5w)+2w=27
3w+2w=27
5w=27
/5
w=5.4 meters
l=8.1 meters

A digit is a number in one of the places, so for example the number 54 has two digits; a tens place digit (5) and a ones place digit (4).

Say the mystery number is a two digit number = xy
* that's not x times y but two side by side digits.

Info given:
the sum of the digits of a two-digit number is 6
x + y = 6
if the digits are reversed, yx the difference between the new number and the original number is 18.

**To obtain the number from digits you must multiply by the place and add the digits up. (Example: 54 = 10(5) + 1(4))

Original number = 10x + y
Reversed/New number = 10y + x

Difference:
10y + x - (10x + y) = 18
9y - 9x = 18
9(y - x) = 18
y - x = 18/9
y - x = 2

Now we have two equations in two variables
y - x = 2
x + y = 6

Re-write one in terms of one variable for substitution.
y = 2 + x
sub in to the other equation to combine them.
x + (2 + x) = 6
2x + 2 = 6
2x = 6 - 2
2x = 4
x = 2

That's the tens digit for the original number. Plug this value into either of the equations to obtain y, the ones digit.

2 + y = 6
y = 4

number "xy" = 24

Attached a solution and showed work.

namely, how many times does 1 and 5/9 go into 3 1/2

let's first convert the mixed fractions to "improper", then divide then.

[tex]\bf \stackrel{mixed}{3\frac{1}{2}}\implies \cfrac{3\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{7}{2}} \\\\\\ \stackrel{mixed}{1\frac{5}{9}}\implies \cfrac{1\cdot 9+5}{9}\implies \stackrel{improper}{\cfrac{14}{9}}\\\\ -------------------------------\\\\ \cfrac{\quad\frac{7}{2} \quad }{\frac{14}{9}}\implies \cfrac{7}{2}\cdot \cfrac{9}{14}\implies \cfrac{7\cdot 9}{2\cdot 14}\implies \cfrac{63}{28}\implies \cfrac{9}{4}\implies 2\frac{1}{4}[/tex]

No. From the data provided you can not determine what the standard deviation is. In order to determine the standard deviation you need the actual grades not just a mean.

[tex]\bf \left( 2p-\frac{1}{2}q \right)^{10}\implies \begin{array}{llll} term&coefficient&value\\ -----&-----&-----\\ 1&+1&(2p)^{10}(-\frac{1}{2}q)^0\\ 2&+10&(2p)^9(-\frac{1}{2}q)^1\\ 3&+45&(2p)^8(-\frac{1}{2}q)^2\\ 4&+120&(2p)^7(-\frac{1}{2}q)^3\\ 5&+210&(2p)^6(-\frac{1}{2}q)^4\\ 6&+252&(2p)^5(-\frac{1}{2}q)^5 \end{array}[/tex]

how do we get the coefficient for the each term? well, the first coefficient is 1, and all subsequents are "the product of the current coefficient and the exponent of the first element divided by the exponent of the second element on the next term", so, that's a mouthful, but for example,

for the 5th term of the expansion, how did we get 210?  well, is just 120 * 7 / 4.

for the 6th term, how did we get 252?  well, is just 210 * 6 / 5.

recall that if the exponent is 10, that means the expansion will be 11 terms, and therefore the middle term will be the 6th one.

so, just combine the 6th term away.

Answer:

No, Sam is not correct. The graph of a proportional relationship has the form y = kx, where k is the constant of proportionality. Sam added the constant of proportionality instead of using it as the coefficient of x. The correct equation is y = 6x. Sam’s graph would be a straight line, but it would not pass through the origin.

Step-by-step explanation:

PLZ MARK ME BRAINLYIST

An equation is formed when two equal expressions. Sam's equation y=6+x is incorrect, and the correct equation is y=6x.

What is an equation?

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

In a proportional relationship, the value of the constant of proportionality is always equal to the ratio of the x and y for a directly proportional relationship and is equal to the product of x and y for an inversely proportional relationship.

Since am wants to write an equation to represent a proportional relationship with a constant of proportionality of 6. Therefore, the equation can be written as,

y = 6x

Hence, Sam's equation y=6+x is incorrect, and the correct equation is y=6x.

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In 81963:

8 is in the ten thousands place
1 is in the thousands place
9 is in the hundreds place
6 is in the tens place
3 is in the ones place

hope this helps

Salutations!

What is the value of 6 in the number  81,963?

The value of of 6 is tens. The place value would be 60 since it is sitting in the tens place.

Hope I helped (:

Have a great day!