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Subject: simultaneous equations
Date: Wed, 29 Dec 2004 05:58:27 -0500
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<HTML><HEAD><TITLE>simultaneous equations</TITLE>
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<BLOCKQUOTE>
  <H3>
  <CENTER>Shopping Spree</CENTER></H3><B>Thandi, Zandi and Mandy spend a =

  substantial amount of money during their last shopping spree to Dubai. =
They=20
  returned loaded with shoes, dresses, hats and jewelry. Zandi was =
determined=20
  not to reveal to her husband how much she had spent on her purchases. =
However,=20
  from the information below he was able to work it out for himself. =
<BR>What=20
  amount of money did Zandi spend?</B>=20
  <TABLE width=3D"90%" bgColor=3Dwhite>
    <TBODY>
    <TR>
      <TD>
        <TABLE cellSpacing=3D0 cellPadding=3D2 width=3D"90%" =
bgColor=3Dwhite>
          <TBODY>
          <TR>
            <TD align=3Dmiddle =
width=3D"20%"><B><BIG>Thandi</BIG></B></TD>
            <TD align=3Dmiddle width=3D"6%">&nbsp;&nbsp;&nbsp;</TD>
            <TD align=3Dmiddle =
width=3D"20%"><B><BIG>Mandy</BIG></B></TD>
            <TD align=3Dmiddle width=3D"6%">&nbsp;&nbsp;&nbsp;</TD>
            <TD align=3Dmiddle =
width=3D"20%"><B><BIG>Zandi</BIG></B></TD>
            <TD align=3Dmiddle width=3D"8%">&nbsp;&nbsp;&nbsp;</TD>
            <TD align=3Dmiddle =
width=3D"20%">&nbsp;&nbsp;&nbsp;</TD></TR>
          <TR>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D88 =
alt=3Ddress=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02a.gif" =
width=3D58=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"6%"><B>+</B></TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D58 alt=3Dhat=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02b.gif" =
width=3D87=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"6%"><B>-</B></TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D50 =
alt=3Dshoes=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02c.gif" =
width=3D88=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"8%"><B>=3D</B></TD>
            <TD align=3Dmiddle width=3D"20%"><B>$210</B></TD></TR>
          <TR>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D58 alt=3Dhat=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02b.gif" =
width=3D87=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"6%"><B>+</B></TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D54 alt=3Dring =

              src=3D"http://www.sec.org.za/riddles/rrid05-02d.gif" =
width=3D63=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"6%"><B>-</B></TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D88 =
alt=3Ddress=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02a.gif" =
width=3D58=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"8%"><B>=3D</B></TD>
            <TD align=3Dmiddle width=3D"20%"><B>$250</B></TD></TR>
          <TR>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D50 =
alt=3Dshoes=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02c.gif" =
width=3D88=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"6%"><B>+</B></TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D54 alt=3Dring =

              src=3D"http://www.sec.org.za/riddles/rrid05-02d.gif" =
width=3D63=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"6%"><B>-</B></TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D88 =
alt=3Ddress=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02a.gif" =
width=3D58=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"8%"><B>=3D</B></TD>
            <TD align=3Dmiddle width=3D"20%"><B>$260</B></TD></TR>
          <TR>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D54 alt=3Dring =

              src=3D"http://www.sec.org.za/riddles/rrid05-02d.gif" =
width=3D63=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"6%"><B>+</B></TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D50 =
alt=3Dshoes=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02c.gif" =
width=3D88=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"6%"><B>-</B></TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D58 alt=3Dhat=20
              src=3D"http://www.sec.org.za/riddles/rrid05-02b.gif" =
width=3D87=20
              border=3D0></TD>
            <TD align=3Dmiddle width=3D"8%"><B>=3D</B></TD>
            <TD align=3Dmiddle =
width=3D"20%"><B>$240</B></TD></TR></TBODY></TABLE>
        <HR width=3D"100%" color=3D#9933ff SIZE=3D5>

        <TABLE cellSpacing=3D0 cellPadding=3D2 width=3D"90%" =
bgColor=3Dwhite>
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          <TR>
            <TD align=3Dmiddle width=3D"20%"><B><BIG>$940</BIG></B></TD>
            <TD align=3Dmiddle width=3D"6%">&nbsp;&nbsp;&nbsp;</TD>
            <TD align=3Dmiddle width=3D"20%"><B><BIG>$950</BIG></B></TD>
            <TD align=3Dmiddle width=3D"6%">&nbsp;&nbsp;&nbsp;</TD>
            <TD align=3Dmiddle width=3D"20%"><IMG height=3D34 alt=3D???=20
              src=3D"http://www.sec.org.za/physics/question.GIF" =
width=3D35=20
            border=3D0></TD>
            <TD align=3Dmiddle width=3D"8%">&nbsp;&nbsp;&nbsp;</TD>
            <TD align=3Dmiddle=20
      =
width=3D"20%">&nbsp;&nbsp;&nbsp;</TD></TR></TBODY></TABLE></TD></TR></TBO=
DY></TABLE><BR>
  <CENTER><B>How much did Zandi spend?</B></CENTER></BLOCKQUOTE>
<TABLE cellPadding=3D2 width=3D"93%" align=3Dcenter bgColor=3Dyellow>
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    <TD vAlign=3Dcenter><B>solution button</B>&nbsp;<A=20
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