document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=84057>Question 84057</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone please help me with these two problems i still can't figure them out.\r<BR>\n" );
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document.write( "A biologist recorded 9 snakes on 21 acres in one area and 13 snakes on 47 acres in another area. Let y be the number of snakes in x acres. Write a linear equation for the number of snake eyes.\r<BR>\n" );
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document.write( "# 8<BR>\n" );
document.write( "Midtown delievery service delievers packages which cost $2.10 per package to deliever . The fixed cost to run the delievery truck is $78 per day. If the company charges $4.10 per package, how many packages must be delivered daily to make a profit of $36? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #60628 by </B><A HREF=/tutors/aboutme.mpl?userid=vertciel><B>vertciel(183)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vertciel><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=60628\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hello there,\r<BR>\n" );
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document.write( "I don't like snakes, but I like math so for 3, could you please clarify the question. Do they just want \"a linear equation for the number of snake eyes\" or a linear equation for the number of snake eyes per specific area? \r<BR>\n" );
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document.write( "8. A linear equation is in the form of y = x. Y is called the dependent variable, because it depends on x, which is the independent variable. Your profit is Y because it depends on how many packages gets delivered (x).\r<BR>\n" );
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document.write( "So we have:\r<BR>\n" );
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document.write( "Profit = Money made from packages - 78 (Truck usage fee or something)\r<BR>\n" );
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document.write( "$36 = 4.1x - 78 <-- Each package costs 4.1 to deliver so 4.1x determines how many packages are delivered.\r<BR>\n" );
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document.write( "4.1x = 114\r<BR>\n" );
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document.write( "x &#8776; 27.805\r<BR>\n" );
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document.write( "However, courriers don't generally deliver fractions of packages so we round x up to 28. Therefore, Midtown delivery service needs to deliver 28 packages if they want to make a profit of $36 while charging $4.1/package.\r<BR>\n" );
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document.write( "Please write back to clarify #3 and if you need any more help.\r<BR>\n" );
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document.write( "---\r<BR>\n" );
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document.write( "Hello again,\r<BR>\n" );
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document.write( "I was curious as to whether #3 had more information because according to the question, \"recorded 9 snakes on 21 acres in one area and 13 snakes on 47 acres in another area\" is useless information.\r<BR>\n" );
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document.write( "Anyways, the ratio of snakes: acres are not proportional in both areas so for the first area, the linear equation of the number of snake eyes would be:\r<BR>\n" );
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document.write( "2(9y) = 21x\r<BR>\n" );
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document.write( "y = (21x/9) x 2 <-- x 2 because each snake has two eyes\r<BR>\n" );
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document.write( "Try to find the linear equation for the second area yourself. Y is the number of snake eyes. </SPAN>\n" );
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