It will rain 6 days in May; and will be very overcast 10 days. The other days will be sunny. What is the Probibility of sun?

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Algebra2

It will rain 6 days in May; and will be very overcast 10 days. The other days will be sunny. What is the Probibility of sun? What are the odds of sun?

Algebra

During the last 365 days it was sunny 5 days less than 4 times the number of rainy days. How many days did it rain?

math

The sanchez family soent 15 days at the seashore. 12 of the days were warm and sunny. What percent of their days were warm and sunny?

chemistry

The disintegration of a radioisotope, such as I-131 to Xe-131, is another example of a first-order reaction. It has a half-life of 8.0 days. I-131 -> Xe-131 + e If you start with 1.40 g I-131, how many grams of I-131 will be left after the following days? 08 days: g, 16 ...

Math

Ansgar is writing a novel. He writes seven days a week. On each of those days he write for at least 4 hours but never more than 8 hours. Last week, he wrote for exactly 46 hours. What is the maximum number of days on which he could have written for 8 hours? A. 2 days B. 3 days...

Math

Ansgar is writing a novel. He writes seven days a week. On each of those days he writes for at least 4 hours but never more than 8 hours. Last week, he wrote for exactly 46 hours. What is the maximum number of days on which he could have written for 8 hours? A. 2 days B. 3 ...

math

of the following which is the closest approximation to the amount of time it takes to read a 487-page book at the rate of 25 pages a day ? a. 20 days b.25 days c.15 days d.10 days e.30 days

Algebra

Two different radioactive isotopes decay to 10% of their respective original amounts. Isotope A does this is 33 days, while isotope B does this in 43 days. What is the approximate difference in the half-lives of the isotopes? 3 days 10 days 13 days 33 days

Math

The earth takes 365 1/4 days to go around the sun. Mercury takes 3 days less than 1/4 of this time. How many days does Mercury take to go around the sun? I believe I would have to find 1/4 of the 365 1/4 days then take 3 days out. I was given this do as home work but was not ...

science

During the month of November, it rained on 12 of the 30 days. It also snowed on 3 days. On what percent did it rain? On what percent of days did it snow?

time n work

a and b together can do a piece of work in16 days.b and c can do same work in 32 days.after a worked for 4 days and b for 12 days c takes it up and finishes it in 48 days.in how many days will each of them complete work

math

If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it? A. 0.8 days B. 1.09 days C. 1.23 days D. 1.65 days E. 1.97 days thanks.

math

Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it? A. 0.8 days B. 1.09 days C. 1.23 days D. 1.65 days E. 1.97 days thanks.

math

estimate the difference in precipitation between 124 days of rain in N.N. and 85 days of rain in Kansas

Financing and Budget

The Average Daily Rate ratio, often used by outsiders as an evaluation of how much revenue is earned each day, is usually calculated on the basis of how many days? A. 365 days B. 30 days C. Number of days a child care facility is open D. 360 days A.

Financing and Budget

The Average Daily Rate ratio, often used by outsiders as an evaluation of how much revenue is earned each day, is usually calculated on the basis of how many days? A. 365 days  B. 30 days  C. Number of days a child care facility is open  D. 360 days A.

Financing and Budget

The Average Daily Rate ratio, often used by outsiders as an evaluation of how much revenue is earned each day, is usually calculated on the basis of how many days?  A. 365 days  B. 30 days  C. Number of days a child care facility is open  D. 360 days  A.

MAT 201

The number of vacation days taken by employees of a company is normally distributed with a mean of 14 days and a standard deviation of 3 days. For the next employee, what is the probability that the number of days of vacation taken is less than 10 days? More than 21 days?

statistics

The number of vacation days taken by employees of a company is normally distributed with a mean of 14 days and a standard deviation of 3 days. For the next employee, what is the probability that the number of days of vacation taken is less than 10 days? More than 21 days?

statistics

The number of vacation days taken by employees of a company is normally distributed with a mean of 14 days and a standard deviation of 3 days. For the next employee, what is the probability that the number of days of vacation taken is less than 10 days? More than 21 days?

adult education

Given Data: Total Sales: $912,500 % of customers that take discounts: 40% % of customers that do not take discounts: 60% # of days that cusomers who take discounts pay by: 10 Days # of days that customers who do not take discounts pay by: 40 Days # of days that customers who ...

possessive nouns

Soldiers carried several ___ cold rations. Is it A. days B day's C.days' D. days's My answer is c. days'

English

Soldiers carried several days cold nations. should days chage to a possessive noun from days to days'

algebra

The U.S. Weather Service reports that in a certain northern city it rains 35 days and snows 40 days in the winter. However, it rains and snows on only 10 of those days. Based on this information, what is the probability that it will rain or snow in that city on a particular ...

algebra

The U.S. Weather Service reports that in a certain northern city it rains 35 days and snows 40 days in the winter. However, it rains and snows on only 10 of those days. Based on this information, what is the probability that it will rain or snow in that city on a particular ...

English

The fire-fighters stand and watch for the first time in days. --------------- What is the meaning of 'in days'? what other expressions can use instead of 'in days'? Thank you.

statistic

in a beacside it rains on 20percent of days and is windy on 30percent a days.if rain and wind are independent on any particular days find the probability that it rains and it windy

Maths

A group of 48 ants have food for 16 days but 12 ants died after 4 days due to rain. For how many days the remaining food will be enough

senior problem solving

a colony of ants doubles every 20 days. if the colony has 350 ants today, how many are/were present in 50 days? a. in 50 days? b. 55 days ago? c. in 30 days?

Financial Derivatives (MBA)

Assume Sun Microsystems expects to receive €20,000,000 in 90 days. A dealer provide a quote of $0.875 for a currency forward contract to expire in 90 days. Suppose that at the end of 90 days, the rate is $0.90. Assume that settlement is in cash. Calculate the cash flow at ...

Math with science

Radioactive iodine treatment is so successful at treating hyperthyroidism that it has virtually replaced thyroid surgery. To the nearest full day, determine how long it will take for 400 millicuries of I-131, which has a half-life of 8 days, to decay to 3.125 millicuries. 56 ...

Astronomy

If the sidereal period of the moon was 29.0 days(instead of the 27.32 days) what would be its synodic period? HINT: consider how far around the sun the Earth/Moon will have travelled in 29.0 days

Environmental Science

A nuclear burning power plant produces a total power of 1.1kW. It serves a community that requires 2.85 x 107 kJ of power over the entire year. How many days per year does the power plant need to operate to provide all this power? 300 days 250 days 365 days 200 days 150 days

math

Last year it rained on 63 days in mudville.There were 7 times as many days of rain in mudville as in desert hills.How many days did it rain in desert last year?

English

1. He read the book in 5 days. 2. He read the book after 5 days. 3. He read the book within 5 days ~~~~~~~~~~~~~~~~ What does #1 mean,#2 or #3? Does 1 mean it took 5 days for him to read the book? Or does it mean it took 1 day, 2 days, 3 days, 4 days,or 5 days to read the book...

Algebra

A population of insects increases at a rate of 1.5% per day. About how long will it take the population to double? 2.5 days 5.0 days 46.6 days 66.7 days

math

A can do a piece of work in 12 days whereas B can destroy the work in 3 days. A does the work for 10 days and then B destroys the work up to 2 days. In how many days will the work be finished? (explaination please)

AP CALC

1.Suppose the amount of water collected from a mountain spring decreases over the summer at a rate of 1.5% per day. When will the spring's output fall to four-fifths its present level? Select one: a. 61.086 days b. 34.055 days c. 14.876 days d. 3.347 days e. 52.714 days 2. The...

math

On the first two days of Mark's vacation, the weather forecaster reports a 25% chance of rain. On the third day of his vacation, Mark is faced with a 50% chance of rain. What is the probability that Mark will have three straight days of rain?

Math

A weather forecast states that there is a 20% probability of rain on each of the next 3 days. Describe a simulation you could perform using random numbers to find the experimental probability that it will not rain on any of the next 3 days. Would love explanation!

MATHS HELP URGENT(TIME AND WORK)

A can do a piece of work in 12 days whereas B can destroy the work in 3 days. A does the work for 10 days and then B destroys the work up to 2 days. In how many days will the work be finished?

math

Find the distance that the earth travels in seven days in its path around the sun. Assume that a year has 365 days and that the path of the earth around the sun is a circle of radius 93 million miles. [The path of the earth around the sun is actually an ellipse with the sun at...

math

A can finish a work in 24 days , B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days.The remaining work was done by A in ? any idea please i used work rate concept but i did not reach to the answer

science

A Geiger counter is used to measure the activity of a sample of iodine-131. Based on the data, what is the half-life of iodine-131? A. 16 days B. 8 days C. 4 days D. 12 days

math

you are going on a holiday for 10 days. what date and month will u come back? 7 days in the month of november since nov has 30 days and 3 days of december. so the answer is 3rd december

statistics

in a beach side suburb it rains on 20% of days and is windy on 30% of days. if rain and wind are independent, on any particular day find the probability that: (a) it rains and is windy (b) it does not rain and is not windy (c) it rains or it windy (d) it does not rain or is ...

Statistics

The lengths of pregnancies are normally distributed with a mean of 273 days and a standard deviation of 20 days. If 64 women are randomly selected, find the probability that they have a mean pregnancy between 273 days and 275 days.

math

2 cars need 8days to remove sand. Additional car joined the work from day 4 to to reduce the time. when will they remove all the sand. -6 days -6 1/3 days -6 1/4 days -7 1/3 days please show steps Thanks in advance.

math

A can do a piece of work in 12 days whereas B can destroy the work in 3 days. A does the work for 10 days and then B destroys the work up to 2 days. In how many days will the work be finished?

3rd grade math

erins summer vacation lasted 100 days. she kept track of the number of rainy days. it rained on 30 days. write a fraction and an equivalent fraction to show what part of all the days it rained.

math

A and B can do a piece of work in 12 days. They started to work together but A left after a few days. If B alone worked for 20 days, the whole work was finished in 24 days. How long would A take to complete the work??? question is really confusing :/

science

How do I predict how long will it take for lava to reach the town, which is 10km from the lava vent, if I know that after 2 days lava was 5 km far from the vent. Thank you Lava traveled 5 km in 2 days. How long will it take for lava to travel 10 km? But what about speed? If ...

Math

At the South Pole there is no sunshine for 182 days every year, and at the North pole the same applies for 176 days per year. What total would you have if you were to combine these two figures. A 359 days a year B 358 days a year C 357 days a year D 335 days a year I think B ...

Maths!

There has just been a planetary alignment of five planets in the system Blogg, all the astrologers have gone loopy, and they want to know when the next occurance of these five planets will happen again. Krypton the nearest planet to the sun takes 6 days to orbit the sun. Zenon...

math

break it down into cases at most one day of rain in 3 days to me means we could have: norain norain norain ----> (1/3)^3 = 1/27 rain norain norain -------> 2/3(1/3^2 = 2/27 norain rain norain -------> same as above = 2/27 norain norain rain -------> same as above...

math

A, b, c can complete a work separately in 24, 36, and 48 days respectively. They started working together but C left after 4 days of start and A left 3 days before the completion of the work. In how many days will the work be completed ?

Physics 30

The activity of a sample of a radioactive isotope is 1800Bq. If this isotope has a half-life of 16 days, what is the activity after 16 days?, 24 days?, and 60 days?

Statistics

The amt of time cold sufferes will experience symptoms is normally distributed wiht a mean of 7.5 days and a standard deviation of 1.2 days what proportion of sufferers will experience in LESS THAN 4 days , also what proportion will experience sympotms for 7-10 days How do you...

math

Solve the following equation: 4/7 x = -16 A)x = 42 B)x = -28 C)x = 23 D)x = -24 Solve the following equation. 4s+13+s=2s+40-6 A)s = 12 B)s = -10 C)s = no solution D)s = 7 You train for the Olympics 120 minutes each day. How many days have you trained when you have jogged 1080 ...

English

1. He read the book in 5 days. 2. He read the book after 5 days. 3. He read the book within 5 days. -------------------- In a dictionary, I found that 'in' is used as 'within' in American English. Then it's confusing. Does #1 mean #3 in American English? I think #1 mean that ...

science

which of the following is the smallest conceivable amount of time that could pass between a lunar eclipse and a solar eclipse ? a) about 14 days b) about 28 days c) about 183 days d) about 365 days

Science

Which of the following is the smallest conceivable amount of time that could pass between a lunar eclipse and a solar eclipse? a. about 14 days* b. about 28 days c. about 183 days d. about 365 days

data management

The stay at a hotel on Spring Break is normally distributed with a mean of 7 days and a standard deviation of 2 days. If 8000 people visited this hotel on Spring Break... a) If a visitor stays 6 days what is the corresponding z-score? b) How many visitors stayed less than 6 ...

statistics

the manager of a football team works for 310 days per year. of this he spends 42 days looking at new player he might buy. what percentage of his working days is this?

Find the pattern

Our trip lasted for 12 days we arrived Sunday July 1 and left on Thursday July 12th where we stayed everyday something went wrong the electricity went out the water was shut off sliding patio wouldn't close the gas oven didn't work, and it rained. Out of the 12 days it was ...

Math

1. In the 30 day month of April, for every three days it rained, there were two days it did not rain. The number of days in April on which it rained was how much greater than the number of days on which it did not rain? 2. Each terms of a certain sequence is greater than the ...

arithmetic

One chicken lays an egg every 2 days, another every 3 days and a third chicken lays an egg every 5 days. They all lay an egg today. How many days in the next 101 days will EXACTLY 2 chickens be laying an egg?

Math

the average employee in the united states works for about 248 days per year and receives abt 13 days of paid vacation. write the number of vacation days as a percent of the total number of days worked. round to the nearest 100th's of a percent.

Algebra

Andrew measures the amount of a very unstable substance to be 100 moles. The half-life of this substance is 3 days (after 3 days, half is gone). Write an exponential function that models this situation where y is the amount of substance and x is time in days. Thank you for ...

Statistics

According to a study by the Centers for Disease Control, the national mean hospital stay after childbirth is 2.1 days. Reviewing records at her own hospital, a hospital administrator calculates that the mean hospital stay for a random sample of 81 women after childbirth is 2.3...

Math 8 - HELP!!!!!!!

If there was 180 days of school and you have Health on A days and Gym on B days. How many days will you have health? please help!

Math

3 pumps were used to empty a pond hold an unknown amount of water. If pump 1 can empty it in 4 days, pump 2 in 10 days and #3 in 5 days, how many days will it take to empty the pond if all 3 are running at the same time?

maths

Please guide me to solve the below problem: 'A'an do 2/3 of a work in 40 days.'B'can do 1/2 of the work in 75 days.'C'can do 3/4of work in 75 days.If all them together work in how many days will they do 5/6 0f the work. I had solved the above problem like this: A can do the ...

algebra

Andrew measures they amount of a very unstable substance to be 100 moles. the half life of this substance is 3 days(after 3 days, half is gone). write an exponential function that models this situation where Y is the amount of substance and X is time in days. use your equation...

Math

I need help in algebra 1. I have 4 questions, I already answered 3 of them, but I need help with the other Andrew measures the amount of a very unstable substance to be 100 moles. The half-life of this substance is 3 days (after 3 days, half is gone). 1. Write an exponential ...

math

john calls his dad every 3 days. Katie calls every 4 days. Jamie calls every 6 days. once in every ________ days, all three will call on the same day.

Math

the time x (in days), that it takes a planet to revolve around the sun can be approximated by the equation x=0.407√(d^3),where d is the mean distance of the planet from the sun in millions of miles. It takes Venus approximately 226 days to complete one revolution of the ...

Science

Hey! so, I was just wondering if someone could check a few of my answers. 1. during what phase of the moon can a lunar eclipse occur? A. New moon B. First Quarter C. Waxing gibbous D. Full moon* 2. Which of the following is the smallest possible amount of time that can pass ...

math

The population mean length of a hospital stay for surgery is 5.5 days and the standard deviation is 1.9 days. What percentage of patients are hospitalized for 3.9 days or less? I've read the book and looked at the explanation that it gives and it's not making any sense.

algebra

A rare bacterial culture is being grown in a lab. As the days progress, the cells multiply and grow. After 1 day, there is only 1 cell. After 2 days, there are 9 cells. After 3 days, there are 20 cells. After 4 days, there are 34 cells. Which recursive equation represents the ...

math

help: Two travelers start simultaneously in two cities A and B, and go to meet each other. The part of A walk 1 km on the first day , the second day 2 km , 3 km on the third day , and so on. The part of B walk 20 miles the first day, the second day 18 km , 16 km on the third ...

Math

If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if they worked together to complete it?

Math

Matthew goes swimming every 6 days and hiking every 8 days.how many days will pass before he does both activities on the same day?

Math

Matthew goes swimming every 6 days and hiking every 8 days.how many days will pass before he does both activities on the same day?

statistics 2

In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20 days. Conduct a ...

statistics 2

In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20 days. Conduct a ...

Statistics 2

In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20 days. Conduct a ...

statistics 2

In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20 days. Conduct a ...

stat

the time between unplanned shutdowns of a power plant has an exponential distribution with a mean of 20 days. Find the probability that the time between two unplanned shutdow is a) less than 14 days B) more than 21 days c) less than 7 days

math

A and B together can make a wall in 60 days. A has worked for 12 days, B finishes the remaining work in 36days. How many days will B take to finish the whole work alone?

math

Anita does laundry every other day. Every five days she changes sheets. Every 15 days she dusts. If she does all three chores today, how many days will it be before she does them all on the same day again?

Healthcare Statistic

The difference between inpatient service days and discharge days is that service days are compiled while the patient is hospitalized and discharge days are compiled after the patient has been discharged from the hospital. T/F

statistics

The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. Out of 50 pregnancies, how many would you expect to last less than 250 days?

MATH help!!!

Andre has $30, and Erin has $14. Andre is saving $5 per day, and Erin is saving $9 per day. After how many days will Andre and Erin have the same amount of money. A) 1 Days B) 4 Days C) 5 Days D) 10 Days I would say C Is that correct??

Language arts help

"It had been days since he has seen the sun,and he knew that a few more days must pass before that cheerful "orb", due south,would just peep above the skyline and dip immediately from view." Which of the following context clues helps to explain the meaning of the word "orb"? 1...

Social studies

Which answer choice lists all of the common nouns in the following sentence? A few days before the race, Squeaky met the girls on the street. (1 point) days, race, Squeaky days, race, street days, race, Squeaky, girls days, race, girls, street••

Stat

The lengths of pregnancies in a small rural village are Normally distributed with a mean of 268 days and a standard deviation of 12 days. What percentage of pregnancies last beyond 290 days?

4th grade math

it takes jupiter 12 years to orbit the sun. how many days does it take jupiter to orbit the sun?. add 3 days for leap years

science

a radioisotope, Iodine-131, has a half life of 8.1 days. explain what this means. draw a particle diagram for a sample 12 particles of I-131 initially after 8.1 days and after16.2 days.

Math

A can do a work in 30 days, B in X days, C can destroy the work in 50 days. If A and B work together alternating with C, they complete the work in 355/7 days. How long will it take for B to complete the work alone?

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