document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=250229>Question 250229</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, my name is Rebecca Ghisoiu. I attend Western Govorners University, an online college.  I am stuck on a few questions concerning a homework assignment, and would appreciate any feedback possible.\r<BR>\n" );
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document.write( "1) MIXTURE WORD PROBLEM<BR>\n" );
document.write( "-There are 50 ounces of liquid. 12 ounces are alcohal. What percentage of the liquid is alcohal? What percentage is water?<BR>\n" );
document.write( "*I have tried to solve this myself by taking the 12 ounces, turning it into a decimal (.12), and multiplying it by 50. Solution was 6% alcohal. Then, I took 12 and multiplied that by 6 which equaled 72%, the percentage of water, which is incorrect. \r<BR>\n" );
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document.write( "2) BLOOD ALCOHAL CONTENT<BR>\n" );
document.write( "-I have consistently been incorrect in trying to find the BAC. I am givin a formula, and all the information needed, yet everytime I calculate the answer (in which I am told to round to the nearest thousanth) my answer is always in the negatives. If you have any advice on finding the BAC, I'd really appreciate it.\r<BR>\n" );
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document.write( "3)PERIMETER OF A RECTANGLE<BR>\n" );
document.write( "-I am givin the perimeter of a rectangle, for example lets say p=64. Then, the problem will state that the length is 4cm less than twice the width. Find the length and width.<BR>\n" );
document.write( "*I understand the formula for finding the lenth and width of a rectangle is P= 2L + 2W. I have trouble decoding the above sentence: \"The length is 4cm less than twice the width.\" If you could show me an example of this, perhaps I may understand it better.\r<BR>\n" );
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document.write( "4)PERCENTAGE WORD PROBLEM<BR>\n" );
document.write( "For my last question, I am having trouble with the following homework example: \"College enterance exams have risen from 20.3 to 20.9 within the past year. Find the percent of this increase.\"<BR>\n" );
document.write( "*What I have done to try to solve this problem is I find the difference (20.9-20.3) and got .6 Then, I would take .6 and divide this by the origianl number, which is 20.3; my answer rounded was 33.8% but this is incorrect. Again, I am not exactly sure what I am doing wrong here, because this is how I was taught to do this.\r<BR>\n" );
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document.write( "These four questions are actually keeping me from passing a test to continue moving forward within my math class. Any help would be wonderful, thank you for your time. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #182201 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=182201\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1) MIXTURE WORD PROBLEM<BR>\n" );
document.write( "-There are 50 ounces of liquid. 12 ounces are alcohol. What percentage of the liquid is alcohal? What percentage is water?<BR>\n" );
document.write( "*I have tried to solve this myself by taking the 12 ounces, turning it into a decimal (.12), and multiplying it by 50. Solution was 6% alcohal. Then, I took 12 and multiplied that by 6 which equaled 72%, the percentage of water, which is incorrect.\r<BR>\n" );
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document.write( "50 ounces of liquid.<BR>\n" );
document.write( "12 ounces of the 50 ounces are alcohol.\r<BR>\n" );
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document.write( "50 - 12 = 38 ounces of water and 12 ounces of alcohol.\r<BR>\n" );
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document.write( "percent of the liquid that is alcohol is 12/50 = .24 * 100% = 24%\r<BR>\n" );
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document.write( "percent of the liquid that is water is 38/50 = .76 * 100% = 76%\r<BR>\n" );
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document.write( "3)PERIMETER OF A RECTANGLE<BR>\n" );
document.write( "-I am givin the perimeter of a rectangle, for example lets say p=64. Then, the problem will state that the length is 4cm less than twice the width. Find the length and width.<BR>\n" );
document.write( "*I understand the formula for finding the lenth and width of a rectangle is P= 2L + 2W. I have trouble decoding the above sentence: \"The length is 4cm less than twice the width.\" If you could show me an example of this, perhaps I may understand it better. \r<BR>\n" );
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document.write( "p = 64.\r<BR>\n" );
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document.write( "P = 2L + 2W is correct.\r<BR>\n" );
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document.write( "length if 4cm less than twice the width means:\r<BR>\n" );
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document.write( "L = 2W - 4\r<BR>\n" );
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document.write( "substitute 2W - 4 for L and the perimeter formula becomes\r<BR>\n" );
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document.write( "64 = 2 * (2W-4) + 2W\r<BR>\n" );
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document.write( "now solve for W to get:\r<BR>\n" );
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document.write( "W = 12.\r<BR>\n" );
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document.write( "If W = 12, then L = 2W - 4 = 20\r<BR>\n" );
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document.write( "you have L = 12 and W = 20\r<BR>\n" );
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document.write( "2L + 2W = 24 + 40 = 64 so that part is good.\r<BR>\n" );
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document.write( "L = 2W-4 = 2*12 - 4 = 20 so that part is good also.\r<BR>\n" );
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document.write( "The statement \"The length is 4cm less than twice the width.\" is decoded as follows:\r<BR>\n" );
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document.write( "4cm less than means -4.<BR>\n" );
document.write( "twice the width means 2*w<BR>\n" );
document.write( "put them together and you get 2*w - 4\r<BR>\n" );
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document.write( "4)PERCENTAGE WORD PROBLEM<BR>\n" );
document.write( "For my last question, I am having trouble with the following homework example: \"College enterance exams have risen from 20.3 to 20.9 within the past year. Find the percent of this increase.\"<BR>\n" );
document.write( "*What I have done to try to solve this problem is I find the difference (20.9-20.3) and got .6 Then, I would take .6 and divide this by the origianl number, which is 20.3; my answer rounded was 33.8% but this is incorrect. Again, I am not exactly sure what I am doing wrong here, because this is how I was taught to do this.<BR>\n" );
document.write( "These four questions are actually keeping me from passing a test to continue moving forward within my math class. Any help would be wonderful, thank you for your time.\r<BR>\n" );
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document.write( "exams rose from 20.3 to 20.9\r<BR>\n" );
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document.write( "the difference is .6 so you got that rightg.\r<BR>\n" );
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document.write( ".6 / 20.3 is equal to .02955665 * 100% = 2.955665%\r<BR>\n" );
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document.write( "It looks to me like you did 20.3 / .6 which would be a reverse of what you should have done.\r<BR>\n" );
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document.write( "2) BLOOD ALCOHAL CONTENT<BR>\n" );
document.write( "-I have consistently been incorrect in trying to find the BAC. I am givin a formula, and all the information needed, yet everytime I calculate the answer (in which I am told to round to the nearest thousanth) my answer is always in the negatives. If you have any advice on finding the BAC, I'd really appreciate it. \r<BR>\n" );
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document.write( "you did not include the equation for this.\r<BR>\n" );
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document.write( "send it to me and I'll decipher it for you.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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