Explore BrainMass
Share

Consumer Mathematics

Mathematics: Time Value of Money

A 9 million dollar contract that stipulates equal payments to be made monthly over a period of five years. To determine what such a contract is worth today, you would need to use Choices are present value factors future values factors presnt value factors of an annuity future value factors of an annuity

Solve: Ratio and Proportion

1. A lawyer bills her clients $250 per hour of service. If a client's case requires 47 hours to complete, use proportion to calculate how much the client will owe the lawyer (excluding tax). 2. A new virus is released on the internet; the administrator of a department's Local Area Network ( LAN) is given five minutes by a ma

Continued Fractions

Show that each of the following holds: [1,1,1,1,1,1,....]^2 = [2,1,1,1,1,1,....] [1,2,2,2,2,2,....]^2 = [2] [1,1,1,1,1,1,....][0,1,1,1,1,1,....] = [1] In each case make a conjecture about a possible generalisation, and explore it (i.e. attempt to prove your conjectures true or false). Note:We can write down any

Solve

1. 2x - 5 / (x - 2)(x + 6) + x^2 - 2x + 1 / (x - 2)(x + 6) 2. y + 4 - y - 2 ------- ------ 10 14 3. 2/(x-3) + 3/(3-x) 4. 3 - c - 4 - 5

Sales Tax

How much is 5¼% sales tax on a $2500 new computer?

Ratio and Proportion, geometry,

Problem #'s 1-20, these I need help completing Multiple Choice Algebraic problems 1. A baseball team wins 11 of its 25 games with no ties. Write the ratio of wins to losses. A) 11/25 B) 25/11 C) 11/14 D) 14/11 2. Find the rate: 392 feet / 8 seconds A) 49 ft/s B) 0.02 ft/s C) 294 ft/s D) 94 ft/s 3.

Game Show Riddle

The Task: Solve the following problem in ESSAY form. The essay should answer the following questions: 1- How did you get your answer? 2- What steps did you take? 3- Where did you begin? Why did you do what you did? and 4- Explain in detail the answer to the problem? The Problem: What is the maximum amount of money a

Four Fractions Problems

Write your final answers using mixed numbers, proper fractions, or whole numbers, as appropriate. Decimal answers may not be used. Example of a satisfactory answer: Each rest stop lasts of an hour. How many hours will you need for the rest stops? Show your calculation. Express your answer as a mixed number in lowest

Word Problems Requiring Addition / Multiplication of Fractions

As a bonus, your boss has given you an extra 2 weeks of vacation to travel to Orlando, Florida and spend some time seeing the attractions. She is even letting you use a company car. However, you need to follow some travel guidelines to be able to use the car for free. This is going to take some planning. Here is an overview

Write all answers in lowest terms.

Please see attached file for full problem description. Problems #'s 18, 38, 44, 50 these I need help completing Add. Write all answers in lowest terms. 18. 13/18 + 11/18 Evaluate each of the following. Write all answers in lowest terms. 38. 9/11 - 3/11 44. Number problem. One task took 7 minutes (min), a second

Ratio, Proportion, Trends and Forecasting

The Bunny Number Oney rabbit farm noticed that the rate of increase in rabbits on the farm was directly proportional to the number of rabbits at the farm at any time t. It was further noticed that the number of rabbits increased from 200 to 400 in 60 days. a. How many more days will it take to have 800 rabbit on the farm? b

Fractions and Ratios : Parts Per Billion

Show that an SO2 atmospheric concentration of 0.2 ppb(v) is equivalent to 0.4 ppb(w) stands for weight and ppb(w) refers to the number of tonnes (or grams) of SO2 in 10^9 tonnes (or grams) of air. The (v) of ppb (v) stands for volume. The ppb stands for parts per billion. Every unit volume of atmospheric air contains (on

Word Problem : Together and Alone

Melanie can paint a certain barn by herself in x days. Her helper Melissa can paint the same barn by herself in 2x days. Write a rational expression for the fraction of the barn that they complete in one day by working together. Evaluate the expression for x=5

Volumes, Areas, Ratios and Proportions

See the attached file. 38. if the circumference of a great circle of the Earth is about 40,000 km. The atmosphere of the Earth has an altitude of about 550 km. Find the volume of the Earth and its atmosphere. 39. A steel gas tank has the shape of a sphere. A radius of the inner surface of the tank is 2 feet long. The tank

Dokken & Dietrich's Donut Company

Dokken & Dietrich's Donut Company pays for 25% of its inventory purchases in the month of the purchase and the remainder in the following month. The company's inventory purchases totaled $840,000 in October, $920,000 in November, and $600,000 in December. The company also paid for new equipment with a total cost of $380,000 in

Adding and Subtracting Fractions

1. If one-half a number is subtracted from five-sixths of the number, the difference is _____ . 2. Simplify. 3. Simplify. See attached file for full problem description.

Simplest Fraction Forms

12 Problems Please see the attached file for the fully formatted problems. Section 5.1 Write each fraction in simplest form. Answer: Write each expression in simplest form. Answer: Answer: The volume of the box is represented by (x + 5x + 6) (x + 5). Find the polynomial that represents