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# Fractions and Percentages

### Find the Partial Fraction Decomposition

Find the partial fraction decomposition for (z+1)/(z^4+4z^2). See the attached file.

### Ratios, Proportions and Percentages Word Problem

If a \$235 monitor is to be sold at 30% off, how much do you have to pay?

### Ratios, Proportions and Percentages Applications and Word Problems

A- electronics problems. 1- If a monitor is to be sold at 30% off, how much do you have to pay? 2- A \$750 digital camera is on sale for \$695, what is the percent savings? When dividing, round to the nearest thousandth. 3- In science class, nicole built a cardboard girder( or a I-beam) in science class that can suppo

### Ratios, Proportions and Percentages

Solve in any way. If you are finding the percent, round to the nearest hundredth. a- what percent of 25 is 23? b- 94.7% of what number is 462? c- what number is 23% of 45? d- 52.75 is what percent of 116? 2- Because of all the food crumbs in her room, Alicia's bedroom is filled with roaches. Last week , she bought a

### Percent Concentration: Dilution Problem

Pure acid is to be added to a 10% acid solution to obtain 27 liters of a 20% acid solution. What amounts of each should be used? See the attached file.

### Fair Market Value : Calculating a Percentage Discount

I received stock at a 15% discount to the Fair Market Value, what was the Fair Market Value? I know the discounted value of the stock and I want to know what the value of the stock was before the discount. The stock was discounted 15%. x= Fair Market Value of the stock before discount (I want to know this) y = discounted va

### Basic Arithmetric Question

If a blueprint 1/4 inch equals 12 inches, what is the actual length in feet of a steel bar represented on the blue print by a line 3 3/8 inches long? How do you work this type of problem?

### Complex Algebra Problem

Simplify the complex fraction, this is a intermediate algebra problem. See attached file for full problem description.

### 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

### Applying a Percentage Increase to Salary over a Number of Years

A person's annual salary starts out at \$30,000. Find a formula for the person's salary t years later, and then find the salary after 5 years and after 30 years. (a) Each year, the person receives a 5% raise.

### 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

### Corporate Finance : Liquidity Ratio, Collection Period, Inventory Turnover, Leverage Ratios, Du Pont Identity, Payables and Market Value

ASee attached file for full problem description. I am needing help answering the circled questions: 1-10 and 13 1, Calculating Liquidity Ratios. SDJ, Inca, has net working capital of \$900, current liabilities of \$4,320, and inventory of \$ 1 ,900. What is the current ratio? What is the quick ratio? 2. Calculating Profit

### do not represent rational numbers.

Show that 2^1/3, 5^1/7, and 13^1/4 do not represent rational numbers.

### 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

### Converting the Sum of Binary Numbers into A Decimal Number

The sum of the binary numbers (1101001) and 0101100 results in the decimal equivalent of...?

### 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

### Simplyfying complex rational expressions.

Can someone explain how to simplify a complex rational expression?

### 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