Explore BrainMass

Consumer Mathematics

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

Fractions Investment Ratio Words

A. One-Third of a number is 5 less than half of the same number. What is the number? B. The sum of a number and its reciprocal is 10/3. What is the number? C. An investment of $1500 paid interest of $45 during a certain period. How mush interest would and investment of $2000 invested at the same rate for the same length o

Fractions Word Problems

Q1. Marie is entitled to one-sixth of an estate because of one relationship to the deceased and one-thirty-second of the estate because of another relationship to the deceased. What is the total portion of the estate that she will receive? Q2. Helen has 1/5 of her portfolio in the U.S. stocks, 1/8 of her portion in European s

Ratios and Proportions : Dilution of Solution

Chemist has 400ml of solution of which 80% is alcohol. How much water needs to be added to dilute solution to 50% alcohol? Please provide step by step breakdown so I can understand how this is solved.

Ratios and Proportions Word Problems

The speed of a freight train is 15ph slower that the speed of a passenger train. The freight train travels 390 mi in the same time that it takes the passenger train to travel 480 mi. Find the speed of each train. It takes 60 oz of grass seed to seed 3000ft^2 of lawn. At the rate how much would be needed to seed 5000ft^2 of

Solving Equations and 'Together and Alone' Word Problems

6.8 5. By checking work records, a contractor finds that Kenny Dewitt can wire a room addition in 9 hr. It takes Betty Wohnt 7 hr to wire the same room. How long would it take if they worked together? 9. The HP Officejet 4215 All-in-one printer, fax, scanner, and copier can print in black one copy of a company's year-end

Ratios and Proportions Word Problems

Bear Population. To estimate the size of the bear population on the Keweenaw Peninsula, conservationists captured, tagged, and released 50 bears. One year later a random sample of 100 bears included only 2 tagged bears. What is the conservationist's estimate of the size of the bear population?

Ratios and Proportions Word Problems

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

Process Capability Ratio

The Older Then Dirt potting soil company uses a machine to fill 40-pound bags of enriched potting soil. The machine has a process standard deviation of 4 ounces. A new industry group wants to sets limits on what can be called a 40-pound bag: a 40-pound bad of dirt must weight at least 39 pounds, 2 ounces and no more than 40 p

Fractions, inequalities, and cross-multiplication

When we have two fractions on either sides of an equality or inequality symbol, we can multiply the numerator on the right hand side (RHS) with the denominator of the left hand side (LHS) and the numerator of LHS with denominator of RHS. The process of multiplying across the symbol and down is referred to as cross-multiplicati

Fractions and LCM Word Problems

A water tank has an inlet pipe and a drain pipe. A full tank can be emptied in 30 minutes if the drain is opened and an empty tank can be filled in 45 minutes with the inlet pipe opened. If both pipes are accidentally opened when the tank is full, then how long will it take to empty the tank? keywords: least, lowest common mu

Fractions Word Problem

World grain demand. Freeport McMoRan projects that in 2010 world grain supply will be 1.8 trillion metric tons and the supply will be only 3/4 of world grain demand. What will world grain demand be in 2010?

Fractions : Together and Alone Word Problems

Working together to get the job done. Betty and Frank, working together , can paint the exterior of a house in 3 days. Frank, by himself, can complete the job in 8 days less than Betty. How long will it take Betty to complete the job by herself?

Sum of infinite series

Please use Partial Fractions to find the sum of the series below. Please show/explain each step in the solution. Thank you ∞ ∑ ________6________ n=1 (2n - 1) (2n + 1 )