dell
This page lists questions and answers that were posted by visitors named dell.
Questions
The following questions were asked by visitors named dell.
a study found that the average time it took a person to find a new job was 130 days. If a sample of 36 job seekers was surveyed, find the 95% confidence interval of the mean. Assume the standard deviation of the sample is 12 days.
15 years ago
To protect her new two-wheeler, Iroda Bike buys a length of chain. She finds that its linear density is 0.61 lb/ft. If she wants to keep its weight below 1.8 lb, what length of chain is she allowed?
13 years ago
a baseball team has already played 37 games and won 21 games. The season has a total of 63 games. How many more games do they have to win to keepthe same winning percentage? (answer should be a whole number)
13 years ago
Write the following number in all three forms of expanded notation: -273.32
13 years ago
show why 4.25/0.7 is the same as 42.5/7
13 years ago
how can you help a student understand that decimal numbers are fractions?
13 years ago
make 2783/1000 a decimal
13 years ago
make 0.237 a fraction
13 years ago
make 24/9 a decimal
13 years ago
if a student writes -3 4/5 equals -11/5 what mistake did they make?
13 years ago
prove 5 divided by 17 equals 3 2/5 is correct?
13 years ago
What is the value of the following expression... 2-4+6-8+10-12+14-16+...-100
13 years ago
if the $180 you spend on room and board represents 3/5 of your monthly income, what is your monthly income?
12 years ago
The ratio of the number of male students to the number of female students in a school is 3:8. How many students are there if there are 48 females?
12 years ago
in a box of cookies one sixth of the cookies are broken. There are 28 more whole cookies than broken cookies. How many cookies are in the box?
12 years ago
each day, Jason walks to his office at a constant rate. one third of the way he passes a bank and three-fourths of the way to work he passes a store. at the bank his watch reads 6:52 am and at the store it reads 7:02 am. at what time was jason halfway to...
12 years ago
Mary and Tom park their cars in an empty parking lot with n >_ 2 consecutive parking spaces (i.e, spaces in a row, where only one car fits in each space). Mary and Tom pick parking spaces at random. (All pairs of parking spaces are equally likely.) What i...
11 years ago
Answers
The following answers were posted by visitors named dell.