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    Algebra

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    Amount of an investment of P dollars for t years at simple interest rate r is given by A = P+Prt. a) Re-write this formula by factoring out the greatest common factor on the right hand side b) Find A if $ 8300 is invested for 3 years at a simple interest rate of 15%

    Amount of an investment of P dollars for t years at simple interest rate r is given by A = P+Prt. a) Re-write this formula by factoring out the greatest common factor on the right hand side b) Find A if $ 8300 is invested for 3 years at a simple interest rate of 15%

    Solve by Factorization & Square Root Property

    See the attached file. Show your work step by step. Solve each equation by factoring. 1. x^2 = -11x - 10 2. 4x^2 - 13x = -3 3. 16x(x-2) = 8x - 25 Show your work. Solve each equation by the square root property 4. 5x^2=45 5. 2x^2 - 7 = -15 6. 3(x+4)^2 = 21 7. (x+2)^2 = -7 8. (8x-3)^

    Equations using the substitution method

    Show work. Solve using the substitution method 1. 5x + 12y + z = 10 2x + 5y + 2z = -1 x + 2y - 3z = 5 2. 2x - 4y + z =3 X - 3y + z= 5 3x-7y+2z=12 3. 5x + 8y - 6z=14 3x+ 4y -2z=8 x+2y-2z=3 4. 5x-11y+6z=12 -x+3y-2z=-4 3x-5y+2z=4 5. 3x+4y+2z=3 4x-2y-8z=-4 x+y-z=3 6. 2x-y-z=0 x+2y+z=3 3x+4y+2

    Pick a country of your choice that is experiencing population growth. Using the Library, web resources, and/or other materials to find the most recent population count of the country you have chosen and the population growth rate of that country.

    Pick a country of your choice that is experiencing population growth. Using the Library, web resources, and/or other materials to find the most recent population count of the country you have chosen and the population growth rate of that country. Use that growth rate to approximate the population in the year 2012. Solve the prob

    equations with variables in denominators

    #28 contain linear equations with constants in denominators. Solve the equation. #50 Contain rational equations with variables in denominators. Write the value or values of the variable tht make a denominator zero. These are the restrictions on the variable. Keeping the restrictions in mind, solve the equation.

    Word Problem

    #1) Ziggys Famous Yogurt blends regular yogurt that is 3% fat with its no-fat yogurt to obtain low-fat yogurt that is 1% fat. How many pounds of regular yogurt and how many pounds of no-fat should be mixed to obtain 60 pounds of low fat yogurt.

    Word Prob-Other

    #1 Find slope given the following points: (2,5) and (2,1) #2. Find slope given the following points: (-3,-1) and (-2,4) #3. Write the point-slope form of the line using the requirements below, then use the point slope form of the equation to write the slope intercept form. Slope = 6 passing through (-4,7) #4)

    Supply and Demand Curves Explanation

    The equations S=5000 + 200x and D=9500-100x express the supply S and the demand D respectively, for the popular compact disc brand in terms of its price x (in dollars). a) Graph the equation on the same coordinate system. b) What happens to the supply as the price increases? c) What happens to the demand as the price i

    system as independent, inconsistent, or dependent

    Solve by graphing, indicate whether each system is independent, inconsistent, or dependent. 1. x + y = 5 x - y = -1 2. y = -x y = -x + 3 Solve by substitution, indicate whether each system is independent, inconsistent, or dependent. 3. x - y = 3 3x - 2y = 3 4. 2x - y = 3 6x - 9 = 3y Solve by the addition metho

    A small publishing company is planning to publish a new book.

    A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will amount to $37,146 . The variable costs will be $8.50 per book. The publisher will sell the finished product to bookstores at a

    Direct and Inverse Proportional Relationship among Variables

    1. Write formula that expresses relationship described by each statement. Use k for the constant in each case. a) m varies directly as p. b) u varies inversely as n. 2. Find variation constant and write a formula that expresses the indicated variation for: c varies inversely as d, and c=5 when d=2. 3. Solve vari

    Statistics of Course Grades

    To earn an A- in a course, you must have a final average of at least 90%. On the first four exams, you have the grades of 86%, 88%, 92%, and 84%. If the final exam counts for two grades, what must you get on the final in order to get an A- in the course?

    A Word Problem: Determining Net Worth

    Melanies' house is worth $125,000, but she still owes $78,422 on her mortgage. She has $21,236 in a savings account and has $9477 in credit card debt. She owes $6131 to the credit union and figures that her cars and other household items are worth a total of $15,000. What is Melanies' net worth.

    Divide and Simplify Functions

    Please see attached for full details of the problem. #1 Multiply. (3y - 7) A. B. C. D. #2 Divide and simplify. A. 3u/v B. 3v/u C. -3v/u D. #3 Simplify. A. B. C. D. #4 Factor completely. A. (h - 9s)(h - s) B. (h

    Tournament Expenses and Teams

    The star youth soccer club helps to support its 20 boys and girls teams financially, primarily through the payment of coaches. The club puts on a tournament each fall to help pay its expenses. The cost of putting on the tournament is $8,000 mainly for development, printing and mailing the tournament brochures. The tournament ent

    Problem Solving Using Polya's 4 step model

    This is the Problem: Public relations. Memorial Hospital is planning an advertising campaign. It costs the hospital $3000 each time a television ad is aired and $2000 each time a radio ad is aired. The administrator wants to air 60 more television ads than radio ads. If the total cost of airing the ads is $580,000, the

    Substitution and value of the variables

    Please show work. 8. Solve by substitution. 52. Unknown numbers. Find two numbers whose ratio is 4 to 3 and are such that the sum of their square is 100. 4. Find the value of each determinant. 2. Find the values of the variables for which each statement is true. =

    parabola open upward or downward

    Solve the 2 problems. Show your work. 1. y = x ^2 - 4x -12 a) What is the vertex? b) What are the intercepts? c) Does the parabola open upward or downward? 2. y = -x^2 + 2x +3 a) What is the vertex? b) What are the intercepts? c) Does the parabola open upward or downward?

    Solving an Algebraic Word Problem

    A bank robber holds up a bank and speeds away on the freeway at 80 miles per hour. Thirty minutes later, police officers, having gotten a description from people at the bank, take off in pursuit at 90 miles per hour. How long will the police have to drive to catch up, and how far from the bank will they catch the robber? Reme

    Quadratic reciprocity

    I need help with this problem: (a) If p is an odd prime and q is an odd prime where q = 10p + 3, show that (p/q)=(3/p). (b) If p is an odd prime and q is an odd prime where q = 10p + 1, show that (p/q)=(-1/p). Please show all work so that I understand each step. Thanks for the help.

    Demand curves

    1. In this problem, we will analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product depending on how much of that product is available on the open market. Often, the demand equation is found empirically (through experiment, or

    Word Problem

    Please help in resolving this problem: 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

    Word Problems

    Please assist in resolving the word problem: A person having a boat will go 15 miles per hour in still water. If the person can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what time is the speed of the current?

    Example Math Problems

    1. Four coins. Place four coins on a table with heads facing downward. On each move you must turn over exactly three coins. Count the number of moves it takes to get all four coins with heads facing upward. What is the minimum number of moves necessary to get all four heads facing upward. 2. Timely coincidence. Starting at 8

    Linear Simultaneous Equations - Word Problem

    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?

    Cost of a gallon of premium gasoline

    The cost of 11 gallons of regular gasoline and 16 gallons of premium gasoline is $58.55. Premium costs $.20 more per gallon than regular. What is the cost of a gallon of premium gasoline? What is the cost of a gallon of regular gasoline?

    Please help me with this last assignment!

    Part 1: Using the Library, web resources, and/or other materials, find the logarithmic formula that gives the pH of a substance. State what each variable in your equation represents. Find the pH of an acidic substance of your choice. Using this pH, show how to find the hydrogen ion concentration, [H+], of the substance using