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    Basic Algebra

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    Algebra Word Problems

    Jenny purchased a prepaid phone card for $20. The long distance calls cost 10 cents a minute using this card. Jenny used her card only once to make a long distance phone call. If her remaining credit on the card is $18.90. How many minutes did her call last?

    Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $24 one-time activation fee and charges 14 cents a minute. The second plan has no activation fee and charges 18 cents a minute. After how many minutes of long distance calls will the costs of the two plans be equal?

    Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $24 one-time activation fee and charges 14 cents a minute. The second plan has no activation fee and charges 18 cents a minute. After how many minutes of long distance calls will the costs of the two plans be equal?

    Algebra Word Problems

    A table and chairs cost $660 . The table costs $90 less than the chairs. What is the cost of the chairs?

    Solving Equations

    Solve the following equation for X: -2 (X-9) = -9x - 10 Simplify your answer as much as possible.

    Subgraphs

    3.3 Characterize those graphs with the property that every connected subgraph is an induced subgraph.

    Algebra Help

    Solve by graphing. Indicate whether each system is independent, dependent or inconsistent. 1. y= 2x-1 x+y= 2 2. 2x-3y=12 3y-2x= -12 3. 3x-y=4 3x-y=0 Solve each system by the substitution method. Indicate whether each system is independent, dependent or inconsistent 4. x-y=3 3x-2y=3 5. 3y=x+5 3x-9y= -10 6

    Algebra Questions

    See attached file for full problem description. 1. Solve. 6x - 0.37 = 5(x - 0.28) 2. Identify the base in the statment "50% of 300 is 150." 3. Identify the rate in the statment " 260 is 52% of 500." 4. The length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base.

    Induction proof instructions

    Need detailed instruction on how to work Use mathematical induction to prove that : 1*2+2*3+3*4+....+n(n+1)(n+2)/3 for all n >_1 and (2) Find d=gcd (721 , 448), find integers s and t with d=721s + 448t, and put the fraction 448/721 in lowest terms.

    Business Math: Which is the better method for calculating overtime?

    (1) Sally worked 48 hours this week . Her overtime rate is 1.5 times the regular rate. When calculating gross pay with overtime, there are two options: Option 1. ( total regular hours X hourly rate ) + ( overtime hours X overtime rate ) = gross pay OR Option 2. ( total number of hours worked X the ho

    Prediction to Produce Market Demand

    Your company produces a product in a market that has grown by 10% per year for the past 15 years. According to your estimate, the market is currently at 30% of saturation. Predict sales for the next 20 years.

    Three equations/three unknowns

    I need to solve the following system of three equations and describe the methods used could you please assist and explain it in detail so I can apply it to the other problems. eq1: X + Y + Z = 6 eq2: 2X - Y + 3Z = 8 eq3: 3X - 2Y - Z = -17

    Methods of proof

    Prove that the square of an even number is an even number using: a) a direct proof b) an indirect proof c) proof by contradiction

    Order and Number of Cyclic Subgroups

    Please address the following question by answering the following: Suppose that G is a finite group of even order 2n. Prove or disprove that the number of cyclic subgroups of G is at most n + 2.

    Important information About Solving Equations and Word Problems

    7(3x+4) = 8(2x+5) + 13 2(x-3) - 3(x+5) = 3(x-2) - 7 3x - 5(3x-7) = 2(x+9) + 45 Geometry: The length of a rectangular playing field is 5 ft less than twice its width. If the perimeter of the playing field is 230 ft, find the length and width of the field. Science and medicine: A bicyclist rode into the country for 5

    Algebra Questions: parabolas, graphing, quadratic equations, etc.

    ***See attached file for full problem description.*** For questions 18, 20, 22, 24, complete the table by matching each graph with the correct equation from (a) - (h). For each equation in exercises 25 to 28, identify the axis of symmetry, create a suitable table of values, and sketch the graph (including the axis of symme

    Evaluating Expressions

    Evaluate the following. Write your answer as a fraction in simplest form. -6/7 * 4 * -2/3

    Distributive Properties

    Use the Distributive Property to remove the parentheses from the following expression (-1-u+4z) (-2)

    Setting up Inequalities

    Suppose wheat and sugar are two basic ingredients necessary to bake two items: a loaf of bread and a muffin. A baker has 25 pounds of wheat and 5 pounds of sugar. To bake each loaf of bread, the baker needs to use 1.3 pounds of wheat and 0.5 pound of sugar. To bake each muffin, the baker need needs 0.4 pound of wheat and 0.16 po