the ratio of hard problems to easy problems was 23 to 7. how many easy problems were there if the total number of problems was 930

Answers

Answer 1

Answer:

5

Step-by-step explanation:

I just know the answer is five


Related Questions

license plates in a country far away consist of 2 letters followed by 4 digits (0-9). if the only restriction is that plates can not have the same digit 4 consecutive times, how many plates are possible? (so sw-4444) is not allowed by (sw-4443) is

Answers

As per the given probability, there are 6760000 number of plates number are possible.

Probability:

In math, probability means the possibility of favorable outcome.

Given,

License plates in a country far away consist of 2 letters followed by 4 digits (0-9). if the only restriction is that plates can not have the same digit 4 consecutive times,

Here we need to find how many plates are possible.

Here we have given that, A license plate composed of 2 letters followed by 4 digits.

The first step is considering the letters in the plate.

Here we know that, the plate consists of 2 letters.

And in alphabets, we have 26 letters which start from A to Z.

Therefore, we can choose 2 letters from 26 letters in 26² ways.

Now, we considering the digits in the plate.

Here the plate consists of 4 digits.

And we have 10 digits which starts from 0 to 9.

Now we can choose 4 digits from 10 digits in 10⁴ ways.

Therefore, the number of possible plates is

=> 26² × 10⁴

=> 676 x 10000

=> 6760000

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Solve the equation, give the exact solution then approximate the solution to the nearest hundredth if necessary

Solve the equation, give the exact solution then approximate the solution to the nearest hundredth if

Answers

We solve as follows:

\(\frac{x^2}{3}=49\Rightarrow x^2=147\)\(\Rightarrow\begin{cases}x=7\sqrt[]{3} \\ x=-7\sqrt[]{3}\end{cases}\)

We have that the solutions for the problem are x = 7sqrt(3) or x = -7sqrt(3).

6/9 as a decimal rounded to 3 decimal places

Answers

Answer: 0.667

Step-by-step explanation:

6/9 ⇔ Given

2/3 ⇔ Simplify fraction

0.666... (repeating) ⇔ Convert fraction to decimal

0.667 ⇔ Round to 3 decimal (Since 6 is more than 5, thus we need to

               rounding up)

Hope this helps!! :)

Please let me know if you have any questions

HELP ME PLEASE I DONT KNOW HOW TO DO THIS

HELP ME PLEASE I DONT KNOW HOW TO DO THIS

Answers

Answer:

x = - 6

p = 9

k = 1

Step-by-step explanation:

See attached worksheet.

HELP ME PLEASE I DONT KNOW HOW TO DO THIS

A group of 6 friends ate lunch at a
restaurant. The bill came to $42 and the
friends agreed to split it equally. Which
expression represents the number of
dollars each person paid?
a.
a
6/42
b.
6 x 42
42-6
C.
d.
42/6

Answers

Answer:

D. 42/6

Step-by-step explanation:

Answer:

D. 42/6 ( 42 divided by 6)

Step-by-step explanation:

Because the 6 friends are deciding to pay an equal amount each that would mean that each of the amounts they are paying would automatically make this problem addition.

So the equation would be 42 divided by 6 which is 7.60 (rounded of course)

So each friend spent $7.60 each.

Since I figured it out with division, the answer D would be the most logical answer.

A water bottle cost $9.45. Sales tax is 7%. What is the total cost?

Answers

Answer:

$10.11

Step-by-step explanation:

Answer:

10.11

Step-by-step explanation:

7% of 9.45 is 0.66, and 9.45 + 0.66 = 10.11, so the answer is 10.11

Don’t mind the answer selected need help quick

Dont mind the answer selected need help quick

Answers

3+(-4) is the right answer never second guess your self hope that helped

Two people are looking up at a skyscraper. The people are 5 miles apart,
and the skyscraper is between them. The angle of elevation to the top of
the skyscraper is 10° for one person and 4° for the other. What is the
approximate height of the skyscraper?

Answers

Answer:

http://caronnaclassroom.weebly.com/uploads/1/3/3/8/13388109/ghq3rev2.pdf

https://answers.yahoo.com/question/index?qid=20110706230042AAteeQm&guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZWNvc2lhLm9yZy8&guce_referrer_sig=AQAAAJvbGUt-D5gGUOG6vSm1xUh4u9qQz8Ct-MwUXiripP8WPV-3YTrujFVGDLiQiVfFW0UUL1hBcE-IJ9ssC3Idz2GVPWh09OCjZgs0RHizsOivAh44ecrLsWdIXPIcEVRNqXPiE3q45Es6UqgxFR3IY54UtqpL0RVGV8cF9dDu_2QJ

Step-by-step explanation:

Here! I hope you do well!

If Lauren reads for 30 minutes in 6 minutes in a 240 page novel,what is the constant of proportionally

Answers

Answer:

The Constant of Proportionality is 5 pages per minute.

Step-by-step explanation:

P.S Can I have brainliest?

Answer:

Lauren reads 5 pages per minute.

Step-by-step explanation:

Just divide 30 by 6 to get your answer

can someone help wit this asap i have 10 more mins

can someone help wit this asap i have 10 more mins

Answers

A is the correct answer

A research team collects both quantitative and qualitative data. They code the qualitative data and examine how variations in the themes are related to the quantitative data. What type of mixing is this

Answers

Its related to the mixing in the Analysis.

Quantitative data:

They are used when a researcher is trying to quantify a problem, or address the "what" or "how many" aspects of a research question. It is data that can either be counted or compared on a numeric scale.

Qualitative data :

It describes qualities or characteristics. It is collected using questionnaires, interviews, or observation, and frequently appears in narrative form. For example, it could be notes taken during a focus group on the quality of the food at Cafe Mac, or responses from an open-ended questionnaire.

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If you know the answer to this question please help!! ASAP I will give brainiest! Fr

the public school enrollment of a city is 13,500. Enrollment is declining at a rate of 4.5% per year. predict the enrollment in 5 years.

Answers

Answer:

In five years, the enrollment would have been 10,724 students

Step-by-step explanation:

The general depreciation formula is given as;

P = I( 1 - r)^t

where P is the present population

I is the initial

r is the rate of depreciation = 4.5% = 4.5/100 = 0.045

t is 5 years

substituting these values;

P = 13,500 (1- 0.045)^5

P = 10,723.84

384.75 as a fraction

Answers

Answer:

1539/4 (improper fraction) or 384 3/4 (simplified fraction)

Step-by-step explanation:

To find the improper fraction, write 384.75 as a fraction:

384.75/1

Then, since you have 2 decimal places after the ., multiply the entire fraction by 100:

38475/100

Next, find the GCF, which is 25, and simplify this fraction to find the final improper fraction:

1539/4

To find the simplified fraction, we already have the whole number, 384, so we have to convert 0.75 to a fraction which is 3/4, because 0.75 is 3/4 of 100:

384 3/4

Hope this helps :)

Wich number is prime 25,27, or 29

Answers

Answer: 29

Explanation: it’s 29

Answer:

29

Step-by-step explanation:

ur in high school bro. Im in 7th grade. Get good bc is gonna get harder

a rectangle has a length of 12 cm and a height of 5 cm. how long is the diagonal

Answers

Answer:

13cm

Step-by-step explanation:

The formula for diagonal is [ d = √h²+l² ] where h = height and l = length.

Solve with what we are given.

d = √5²+12²

d = √25+144

d = √169

d = 13

Best of Luck!

0<7x what is the answer to this

Answers

Step-by-step explanation:

Divide

2

Simplify

Solution

x>0>0

Find solutions on the web

can you find a fraction that is equivalent to 6/25 which of the following terminating decimal is equivalent to destruction ​
A. 0.20
B. 0.22
C. 0.24
D.none

Answers

Answer:

I think the answer is c. Hope this helps. Please tell me if I am right or wrong.

Step-by-step explanation:

help me answer this please it’s due today

help me answer this please its due today

Answers

$5 for 1 shirt

y = cost

x = number be shirts

10y = 2x

5y = x

5$ a shirt ...............

Find the range of the data.

67, 63, 72, 62, 64, 79, 74, 66

Answers

Answer:

The range is 17

Step-by-step explanation:

67, 63, 72, 62, 64, 79, 74, 66

To find the range of the data, take the largest number and subtract the smallest number.

The largest number is 79

The smallest number is 62

79-62 = 17

The range is 17

A small organic food store makes two types of fruit smoothies: tropical and sport. Each tropical smoothie uses 9 oz of orange juice and 6 oz of milk. Each sport smoothie uses 3 oz of orange juice and 3 oz of milk. The store buys the orange juice in a 210-oz container and milk in a 150-oz container. The store sells the tropical smoothies for $4 and sells the sport smoothie for $3. What is the maximum in smoothie sales the store can make from 1 container each of orange juice and milk?


A) $100
B) $110
C) $150
D) $280

Please show steps and explain

Answers

Answer: $150

the sports drink is only 25% smaller in the price compared to the tropical

but is 2-3 times fewer supplies than the low pretty convenient but the most you get from the tropical is $92

the most you can stink out of this sum is $150

Step-by-step explanation:

Answer:$150

Step-by-step explanation:

the sport drink is only 25% less in the price compared to the tropical...

but is 2-3 times less supplies than the tropical... pretty convenient but the most you get from the tropical is $92

the most you can suck out of this total is $150

MARK ME BRAINLEST

Part A
Which angles are congruent to 5? Select all that apply.

Part B
If 6=85, what is the measure of 3?

Part AWhich angles are congruent to 5? Select all that apply.Part BIf 6=85, what is the measure of 3?

Answers

Part A. 7, 1, 3
Part B. 95°
The answer for is A=7,1,3

PLEASE HELP, WHOEVER GETS IT RIGHT GETS BRAINLIEST PLEASE HELP SHOW WORK TOO

PLEASE HELP, WHOEVER GETS IT RIGHT GETS BRAINLIEST PLEASE HELP SHOW WORK TOO
PLEASE HELP, WHOEVER GETS IT RIGHT GETS BRAINLIEST PLEASE HELP SHOW WORK TOO
PLEASE HELP, WHOEVER GETS IT RIGHT GETS BRAINLIEST PLEASE HELP SHOW WORK TOO
PLEASE HELP, WHOEVER GETS IT RIGHT GETS BRAINLIEST PLEASE HELP SHOW WORK TOO
PLEASE HELP, WHOEVER GETS IT RIGHT GETS BRAINLIEST PLEASE HELP SHOW WORK TOO

Answers

a: 4 maybe

b: origin?

I don't know if right, I am 10 and just started advanced math

Ex2. Prime Numbers ( 40 points) You will implement in this exercise an ancient Greek algorithm for finding the prime numbers less than a given number. (ask your instructor about the name of the algorithm after class!) Reminder: A prime number is a positive integer greater than 1 that is divisible only by itself and by 1 . Here is how the algorithm works assuming we would like to find the prime numbers ≪=20 : 1. Initially, assume that all the numbers are prime by marking them with 1 (0 means not prime). 2. For each number that is marked as prime, starting at 2, mark all of its multiples as not prime. which marks all the multiples of num in the array (of size n ) as not prime (excluding num). 2. Write a program that prints the prime numbers κ=150 : a) Create and initialize an array for marking the numbers with 0 (not prime) or 1 (prime). b) For every number 2<=i<150, use function cross_multiples_out to mark all of its multiples as not prime. c) Pass through the array and print the numbers marked as prime.
Previous question

Answers

The code efficiently identifies prime numbers using the ancient Greek algorithm. It initializes an array, marks the multiples of each prime number as non-prime, and then prints the prime numbers.

This algorithm demonstrates a straightforward and efficient method for finding prime numbers within a given range.The ancient Greek algorithm for finding prime numbers less than or equal to a given number is implemented in the provided Python code. The algorithm follows a simple approach of marking numbers as prime or non-prime.

It starts by assuming all numbers as prime and then proceeds to mark the multiples of each prime number as non-prime. The code initializes an array where each element represents a number and marks them all as prime initially. Then, it iterates over each number from 2 to the given number, checking if it is marked as prime. If it is, the algorithm crosses out all its multiples as non-prime. Finally, it prints the numbers that remain marked as prime.

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It is assumed that approximately​ 15% of adults in the u.s. are​ left-handed. consider the probability that among 100 adults selected in the​ u.s., there are at least 30 who are​ left-handed. given that the adults surveyed were selected without​ replacement, can the probability be found by using the binomial probability formula with x counting the number who are​ left-handed? why or why​ not?
a. Yes, because the 100 adults represent less than 5% of the U.S. adult population, the trials can be treated as independent.
b. No, because the 30 adults represent more than 5% of the sample size, the trials are dependent.
c. No, because the 100 adults were selected without replacement, the selections are dependent.
d. No, because the probability of being right-handed is greater, x must count the number of right-handed adults.

Answers

No, the probability be found by using the binomial probability formula with x counting the number who are left-handed. The correct option is (c) No, because the 100 adults were selected without replacement, the selections are dependent.

The binomial distribution assumes that the trials are independent, meaning that the outcome of one trial does not affect the outcome of any other trial. However, in this case, the 100 adults were selected without replacement, which means that the outcome of one selection affects the probability of the next selection. Therefore, the trials are dependent, and the binomial probability formula cannot be used.

Instead, we can use the hypergeometric distribution to calculate the probability of at least 30 left-handed adults in a sample of 100 adults selected without replacement from the U.S. population. The hypergeometric distribution takes into account the fact that the selections are dependent and is appropriate for this type of problem.

Therefore, the correct option is (c) No, because the 100 adults were selected without replacement, the selections are dependent.

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An icecream shop has 10 flavors. One can choose 4 different
flavors. What is the total number of possible flavor
combinations?
a.
252
b.
462
c.
120
d.
330
e.
210
2.

Answers

An ice cream shop has 10 flavors and one can choose 4 different flavors. The question asks for the total number of possible flavor combinations.Therefore, we need to find the number of ways in which 4 flavors can be chosen from 10 flavors.

In such cases where order does not matter and repetitions are not allowed, we can use the formula for combinations which is as follows:C(n, r) = n! / (r! (n - r)!)Where n is the total number of items, r is the number of items being chosen at a time and ! represents the factorial function.

Using this formula we can find the total number of possible flavor combinations. Substituting the values in the above formula, we get:C(10, 4) = 10! / (4! (10 - 4)!)C(10, 4) = (10 * 9 * 8 * 7) / (4 * 3 * 2 * 1)C(10, 4) = 210Hence, there are 210 possible flavor combinations when one can choose 4 different flavors

.Explanation:The formula to be used for this type of question is combination. Combination is the method of selecting objects from a set, typically without replacement (without putting the same item back into the set) and where order does not matter. The formula for combination is given by C(n,r)=n!/(r!(n-r)!).

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A mall independent movie company determine the profit, P, for producing n DVD copie of a recent releae i P=-0. 02n^23. 4n-16. P i the profit in thouand of dollar and n i in thouand of unit

Answers

The equation P = -0.02n^2 + 3.4n - 16 represents the profit, P, in thousands of dollars for a small independent movie company as a function of the number of DVD copies produced, n, in thousands.

The equation is a quadratic equation, which means it is a polynomial equation of degree 2. The general form of a quadratic equation is ax^2 + bx + c = 0, where a, b and c are constants and x is the variable. In this case, the equation can be written as P = -0.02n^2 + 3.4n - 16, where P is the variable, and -0.02, 3.4, and -16 are the constants.

The first term in the equation is -0.02n^2, which represents the cost of producing the DVD copies. As n increases, the cost of production also increases, and the coefficient -0.02 represents that the cost of production is directly proportional to n^2. The negative sign in front of the term indicates that as the number of copies increases, the cost of production also increases and thus the profit decreases.

The second term in the equation is 3.4n, which represents the revenue generated by the sale of the DVD copies. As n increases, the revenue generated also increases, and the coefficient 3.4 represents that the revenue is directly proportional to n. The positive sign in front of the term indicates that as the number of copies increases, the revenue generated also increases and thus the profit increases.

The last term in the equation, -16, represents the fixed costs associated with producing the DVD copies, such as overhead costs, marketing and distribution costs, etc. These costs are not directly related to the number of copies produced and are constant regardless of how many copies are produced.

In summary, the equation P = -0.02n^2 + 3.4n - 16 represents the profit for a small independent movie company as a function of the number of DVD copies produced. The profit is affected by the cost of production, revenue generated from sales, and fixed costs. As the number of copies increases, the cost of production increases, the revenue generated increases, and the fixed costs remain constant. The profit is the difference between the revenue generated and the costs incurred.

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taxes and paychecks and jobs

Answers

Taxes are a portion of our income that we pay to the government in order to fund public services like roads, schools, and healthcare.

When we work a job, a certain percentage of our paycheck is withheld to cover these taxes. The amount of taxes withheld depends on our income level and the number of deductions we claim. It's important to understand taxes and paycheck withholding so that we can budget properly and avoid any surprises come tax season. Different jobs also have different tax implications, so it's important to understand the tax implications of any job you're considering.


It sounds like you're interested in understanding the relationship between taxes, paychecks, and jobs. In a job, you earn income through a paycheck, which is subject to various taxes. These taxes, such as income tax, Social Security tax, and Medicare tax, are deducted from your paycheck, reducing your take-home pay. The taxes collected help fund government programs and services.

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One of the primary goals of constructing a frequency distribution for quantitative data is to summarize the data:________

Answers

One of the primary goals when constructing a frequency distribution for quantitative data is to summarize the data in a manner that: accurately depicts the data as a whole.

Hence, option (a) is correct.

One of the primary goals of constructing a frequency distribution for quantitative data is to summarize the data by organizing it into classes or intervals and showing how many data points fall into each class.This allows for a quick visual representation of the data and can reveal patterns, trends, and insights that might not be apparent when looking at the raw data. The frequency distribution can also be used to calculate various descriptive statistics such as measures of central tendency (e.g., mean, median) and measures of dispersion (e.g., range, standard deviation) that further summarize the data and provide a more complete understanding of its characteristics.

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The complete question may be:

One of the primary goals when constructing a frequency distribution for quantitative data is to summarize the data in a manner that:_____________

(a) accurately depicts the data as a whole.

(b) accurately add the data as a whole.

(c) Make a frequency distribution of data

(d) None of the above

Find parametric equations for the path of a particle that moves along the circle
x2 + (y − 2)2 = 9
in the manner described. (Enter your answer as a comma-separated list of equations. Let x and y be in terms of t.)
(a) Once around clockwise, starting at (3, 2).
0 ≤ t ≤ 2π.
(b) Four times around counterclockwise, starting at (3, 2).
0 ≤ t ≤ 8π.
(c) Halfway around counterclockwise, starting at (0, 5).
0 ≤ t ≤ π.

Answers

To find the parametric equations for the path of a particle moving along a circle with 0 ≤ t ≤ π, we'll start by considering the equation of a circle with radius r centered at (h, k):
(x-h)² + (y-k)² = r²
Now, to create parametric equations, we'll express x and y in terms of a parameter, t. In this case, t represents the angle (in radians) that the particle has traveled along the circle.
We can use the trigonometric functions sine and cosine to do this. For a circle with radius r centered at (h, k), the parametric equations will be:
\(x(t) = h + r*cos(t)\)
\(y(t) = k + r*sin(t)\)
Since we're given a range for t (0 ≤ t ≤ π), this means that the particle moves along a semicircle, starting at the initial point (h+r, k) when t=0 and ending at the point (h-r, k) when t=π.
To summarize, the parametric equations for a particle moving along a circle with radius r and center (h, k) for 0 ≤ t ≤ π are:
\(x(t) = h + r*cos(t)\)
\(y(t) = k + r*sin(t)\)

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1/4(d-2)=6.

What is the Value of d +3?

Answers

Answer:

29

Step-by-step explanation:

1/4 (d-2) = 6

1/4d - 1/2 = 6

1/4d = 6 1/2

d = 6 1/2 ÷ 1/4

d = 13/2 ÷ 1/4

d = 13/2 * 4/1

d = 26/1

d = 26

d + 3 =

26

+ 3 =

29

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