document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1152152>Question 1152152</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jamila paid $2.20 for 5 shark erasers and 1 keychain. Lucia paid $3.40 for 2 shark erasers and 6 keychains. How many cents did Hari pay for 1 shark eraser and 1 keychain? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #774087 by </B><A HREF=/tutors/aboutme.mpl?userid=Shin123><B>Shin123(626)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Shin123><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Shin123><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=774087\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the cost of a shark eraser be s and the cost of a keychain k. We have the system of equations, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%285s%2Bk=2.20%2C2s%2B6k=3.40%29 ALIGN=MIDDLE  ALT=\"system%285s%2Bk=2.20%2C2s%2B6k=3.40%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Dividing the second equation by two and multiplying by five gets <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%285s%2Bk=2.20%2C5s%2B15k=8.50%29 ALIGN=MIDDLE  ALT=\"system%285s%2Bk=2.20%2C5s%2B15k=8.50%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtracting the first equation from the second gets <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14k=6.30 ALIGN=MIDDLE  ALT=\"14k=6.30\"   DISABLED_style= \"max-width:90%; height:auto;\" > Dividing by 14 gets k=0.45. Plugging this value in any of the equations gets you s=0.35. So a shark eraser costs 35 cents and a keychain costs 45 cents.  Therefore, the solution is 35+45= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28highlight_green%28highlight%2880%29%29%29 ALIGN=MIDDLE  ALT=\"highlight%28highlight_green%28highlight%2880%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > cents. Click <a  rel=nofollow HREF= /algebra/homework/Matrices-and-determiminant/Cramer’s-Rule.solver?content_action=show_dev>here</a> for a solver and click <a  rel=nofollow HREF=/my/Equation-Solver-2.solver?content_action=show_dev>here</a> for a different equation solving solver that uses an alternative method.  </SPAN>\n" );
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