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    shayshay123's Avatar
    shayshay123 Posts: 1, Reputation: 1
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    #1

    Feb 9, 2009, 05:21 PM
    equation with comparison symbols
    2 is less than or equal to 2/3 x is less than 4
    rwinterton's Avatar
    rwinterton Posts: 289, Reputation: 15
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    #2

    Feb 9, 2009, 09:01 PM

    A < B < C then B is between A and C

    2 <= 2/3X <= 4

    Break it down into two separate inequalities

    2 <= 2/3x
    and
    2/3x <= 4

    You can perform algebraic operations on the inequality, but you have to be careful. For example, if you have to multiply or divide by a negative number, the sense changes so always make sure you're multiplying or dividing by positive numbers. Occasionally, you'll have to multiply or divide by the unknown, "x". You have to make sure that x comes out positive. Otherwise, things change.

    A > B
    -A < -B

    Once you solve your equation for x, you'll see what x is between.
    BOSBONE's Avatar
    BOSBONE Posts: 2, Reputation: 1
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    #3

    Feb 13, 2009, 04:06 PM
    I have to write a system of equations for each problem below must use the variables in the problems to write the systems

    1.mr.franklin bought 8 tickets to a puppet show and spent $30. He bought a combination of child tickets for $3 each and adult tickets for $5 each. Write a system of equations that will determine the number of adult tickets,a,and the number of child tickets,c,he bought
    rwinterton's Avatar
    rwinterton Posts: 289, Reputation: 15
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    #4

    Feb 14, 2009, 06:20 AM
    Quote Originally Posted by BOSBONE View Post
    mr.franklin bought 8 tickets to a puppet show and spent $30. He bought a combination of child tickets for $3 each and adult tickets for $5 each. Write a system of equations that will determine the number of adult tickets,a,and the number of child tickets,c,he bought
    C = child tickets
    A = adult tickets

    A + C = 8
    3 * C + 5 * A = 30

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