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Fractions and Percentages

Percentage Application and Percent Decrease

The price of a cup of coffee has dropped to $2.10 today. Yesterday's price was $2.45. Find the percentage decrease. Round your answer to the nearest tenth of a percent. See the attached file.

Labor Usage, Percentage Unused Avaliable Labor, and Distribution

A certain service station uses a team of 3 mechanics in one repair station to work on each car that needs repair. This team can repair cars at a rate of 9 per day. Cars arrive for repairs at the station at the rate of 4.5 per day. The service station owner has decided that this team is not very efficient in terms of labor usag

College Algebra

Please help with the following attached questions: 20, 22, 30, 42, 46, 58, 60, 64 and 70 (See attached file for full problem description)

Percentages of workers salaries

A worker earns a 5% raise. A year later, the worker receives a 2.5% cut in pay, & now her salary is $22,702.68. What was her salary to begin with?

When a pair of dice is rolled, the total will range from 2 (1,1) to 12 (6,6). It is a fact that some numbers will occur more frequently than others as the dice are rolled over and over.

4. When a pair of dice is rolled, the total will range from 2 (1,1) to 12 (6,6). It is a fact that some numbers will occur more frequently than others as the dice are rolled over and over. A. Why will some numbers come up more frequently than others? B. Each die has six sides numbered from 1 to 6. How many possible ways can a

Word Problem : Calculating an Extra Grade from Percentages

One of the students in my class was absent the day of the test. The teacher announced that the class average for the 24 students who took the test was 75%. After the other student came back and took the test, the teacher announced that the class average had increased to 76%. Explain how you calculate what the absentee student

Mutually Exclusive

Consider the estimates below. If the alternatives are mutually exclusive and the MARR is 15% per year, the one(s) that shoild be selected is (are) ? Incremental Rate of Return, %, when Initial Alternative Compared with Alte

Percentages and probability

How might you estimate the percentage of the time a particular number will come up if the dice are rolled over and over? Once these percentages have been calculated, how might the mean value of all the numbers thrown be determined?

Statistics : Sampling of Waybills, Percentage Errors

The Chesapeake and Ohio Freight Study A sample of 2072 waybills from a population of 22,984 waybills was used to estimate the total revenue due C&O. The estimate arrived at was $64,568. Because all 22,984 waybills were avaliable, a census could be taken to determine exactly the total revenue due C&O and thereby reveal the a

Laurent series for a complex-valued function

Consider f(z) = [(z-i)(z+4)(z-3)]^(-1) restricted to the domain of definition 0 < |z|< infinity How many different Laurent series centered at z_0 = 0 does it have? Explain. Discuss the convergence and divergence sets of each of those Laurent series. Find two non-zero terms of the Laurent series which represents this

MiniMax and Decision Tree Payoff Questions

For the attached problem, I need help with c, d, and e. For a) I get Decision B For b) I get Decision C The answers for c, d, and e were shown in class to be as follows, but I need to see how they were obtained: c) Decision A d) EV(A)= 695 (best) EV(B)= 385 EV(C)= 500 e) EVPI=230 Please show m

MiniMax and Decision Tree Payoff Questions

I have 3 individual questions related to a class lecture that we had on Payoff Alternatives and Regret. These questions should be VERY simple, and probably take less than 2 minutes to answer. 1. Is it true that the payoff at the end of a decision tree represents everything along the path leading to that end? 2. Are the s

Finding Percentages

How do I go about finding 10% of a number, any number. For example, What is ten percent of 1,648?

Addition and Substraction of Fractions

This is for OTA #101733 only! 1. Find the LCM of 16 and 40. ____a. 40 __x_b. 80 ____c. 120 ____d. 640 2. Add and Simplify: 4/5+3/4 ____a. 7/20 ____b. 7/9 _x__c. 31/20 ____d. 17/9 3. Subtract and simplify: 8/15-2/9 _x__a. 2/45 ____b. 16/135 ____c. 40/135 ____d. 14/45 4. Whic

Addition and Substraction of Fractions

This is for OTA #101733 only? 1. Find the LCM of 16 and 40. ____a. 40 __x_b. 80 ____c. 120 ____d. 640 2. Add and Simplify: 4/5+3/4 ____a. 7/20 ____b. 7/9 _x__c. 31/20 ____d. 17/9 3. Subtract and simplify: 8/15-2/9 _x__a. 2/45 ____b. 16/135 ____c. 40/135 ____d. 14/45 4. Which of the follow

Imaginary ( Complex ) Numbers, Discriminants and Real World Applications

1. When solving a quadratic equation using the quadratic formula, it is possible for the b2 - 4ac term inside the square root (the discriminant) to be negative, thus forcing us to take the square root of a negative number. The solutions to the equation will then be complex numbers (i.e., involve the imaginary unit i). Question

Ratios and Equal Ratios

How do we use ratios and of what value is it? How would I figure out equal ratios? Give examples. Thanks

Spot Rates Calculated

How would I calculate the 1 yr forward rates over the next 3 years for spot rates of Yr 1 .050 Yr 2 .054 Yr 3 .059 Yr 4 .066 I just need the formulas, not the answers.

Key Metrics and Ratios for Abercrombie and Fitch Company

Using Abercrombie and Fitch Company (data attached): You are interested in learning moe about from an investment standpoint. Identify KEY METRICS and RATIOS of the company that will give a good indication of how "investment worthy" it is. 1) List the key financial metrics and ratios for Abercrombie and Fitch for that comp

Basic Business Statistics : Frequency Distributions and Percentages (7 Problems)

19. The data displayed below represent monthly phone bills for a random sample of small business customers. 208 133 165 179 258 212 178 178 209 212 150 198 137 258 277 145 234 176 209 220 209 160 151 279 177 199 212 188 162 125 221 147 215 245 198 245 275 180 203 226 Which of the following would be the most appropriate

Percentage Final Price Paid

Given a sales tax rate and the final price paid, how do I determine how much of the final price was the tax? For example, if I spent $15.83, how much of that was the sales tax whose rate is 8%?

Interpret the Data Given - Women in the Army

See the attached file. Given the information below (and attached), please determine: Are women being denied the opportunity to join the Army because they are too short or too tall? If the required women's height for the Army is between 58 and 80 inches. The Mean = 63.3, and the SD = 2.5 What percentage of women meet

Key Financial Ratios that Measure Stability of a Company: How investors assess the stability of a public company? What are the key financial ratios that measure the stability of an organization? Define stability. Calculate these ratios per the attached file using Excel spreadsheet.

How investors assess the stability of a public company? What are the key financial ratios that measure the stability of an organization? Define stability. Calculate these ratios per the attached file using Excel spreadsheet. File attached for a analysis of financial ratios for the company. Balance Sheet as of December

Solution Concentrations : Percentages and Amount of Concentrate Needed

I am doing an embalming course and need to work out percentages , e.g of question. A container will hold 1 ltr, you will need the following solutions for different purposes, how much concentrate will you need in each case. 2% solution 1 in 20 solution 4 in 50 solution a 5.5 solution 1 in 3.5 solution. Can you show m