Q and A for the topic: General

In a particular retail clothing store, approximately 25% of potential customers who walk into the store make a purchase. In a random sample of 20 customers that walked into the store, ________________________________________ a. what is the probability that exactly 10 of the customers make purchases? b. what is the probability that at least 2 of the customers make purchases? c. how many of the customers are expected to make purchases? d. what is the standard deviation of the number of customers who make purchases?

If the interest rate recognized by some financial documents is 5% simple annual. How much money is there in 3 years, if a company invests $240,000.00 today

Prove that if n is a perfect square,then n+2 is not perfect square

3ln3^x =4

company B receives all UM allowances for free and that company A receives no allowances at all. What will the allocation of emission rights look like when the companies have achieved a pareto-efficient solution by "trading emissions rights" with each other (emissions trading)? Illustrate your reasoning with a figure and explain the way to the solution. Can you imagine a situation where a very uneven distribution of emission rights could be motivated? (Remember that the companies can be industries or countries).

In 12 - In 4 reduce logarithmic expression

420ml= OZ Can you please show the work on how I figure out this problem

62124 ÷ 3 using boxes and dots method

Calculate the mean of the set of n = 5 sample determinations 4, 6, 1, 2, 2.

You received an inheritance of $40,000 from a beloved uncle. With inflation so high, you decided that rather than save the inheritance, you are going to invest it. You were given two interest bearing accounts to invest in. One yields 7% simple interest and other pays 6.5%. You expect earn $2,640 in interest in total from both accounts in the first year. How much should you invest in each account?

You received an inheritance of $40,000 from a beloved uncle. With inflation so high, you decided that rather than save the inheritance, you are going to invest it. You were given two interest bearing accounts to invest in. One yields 7% simple interest and other pays 6.5%. You expect earn $2,640 in interest in total from both accounts in the first year. How much should you invest in each account?

You ran out of paint and primer while changing the color tone in your new house. You had already purchased 4 gallons of paint and 9 gallons of primer for a total cost of $275. Back to the paint shop, added 3 more gallons of paint and 5 gallons of primer for $180. Find the cost per gallon for the paint and the pine.

A group of 4 songwriters had a hit song. They made $104,000,000 in streaming sales. Jessie received $6 million more that Cara; Keynak got $10 million more than Jessie; and, Rhonda received twice as that Cinak. How much money did each writer receive?

Louis works in a stone quarry with his brother and cousin. Every day they are given a pile of rocks which they must carry up a hill. Today Louis transported two thirds of the pile of rocks, his brother transported a fifth and their cousin transported 60 rocks. How many rocks did Louis and his brother each carry?

A survey of 570 working adults in the United States asked each participant how many hours they worked last week. The survey showed an average of 41.525 hours worked per week, with a standard deviation of 14.828 hours. (Note that this is the average for people that work in the United States, including part-time employees. Among full time employees, the average work week is closer to 47 hours. Link if you’re interested: http://www.gallup.com/poll/175286/hour-workweek-actually-longer-seven-hours.aspx) Is there enough evidence to show that Americans work more than 40 hours per week on average at the 0.01 significance level? Should we perform a Z test or a t test, and why? Select one: a. A z test, because we don't know the population standard deviation b. A t test, because we know the population standard deviation. c. A z test, because we know the population standard deviation. d. A t test, because we don't know the population standard deviation.

Knowing a= 225 m and b/c = 4/3, calculate the elements of the right triangle

Matilda saves 10 000e into savings account for five years time. The account has an interest rate of 3%. How much money will she have after 5 years time? There is also a 30% withholding tax from the interest rate.

Marta Alicia will buy new industrial equipment for her business. The value of It is Q 250,000 of which you will pay 20% in cash and the rest will be financed for 5 years through monthly payments at a rate of 12% annually compounded monthly. What is the value of the monthly payments?

A person buys a stove that costs Q. 9,500. Pay a down payment of Q. 2,000 and agrees to pay Q 8,000 nine months later, what interest rate simple annual paid?, in excel

Sergio Morales will buy new medical equipment for his Dental clinic, the equipment will be paid for through a down payment of Q5,000 and monthly dues of Q4,000.00. If the total in installments that you will pay to the supplier is Q 72,000. Determine the cash value of the equipment, if the rate charged is 3% per month. to. 45,230.21 b. 48,556.90 c. 33,876.12 d. 60,014.05 and. None of the above.