document.write( "Question 1102254: One car is seven times as old as the other. It will be 4 times as old 5 years from now. Find the present age of the car. \n" ); document.write( "

Algebra.Com's Answer #716964 by ikleyn(52792) $\"\"$ $\"About$

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document.write( "\"One car is seven times as old as the other.\"  =====>  A = 7B            (1)\r\n" );
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document.write( "\"It will be 4 times as old 5 years from now.\"  =====>  A+5 = 4*(B+5)     (2)\r\n" );
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document.write( "Substitute (1) into eq(2). You will get\r\n" );
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document.write( "7B +5 = 4*(B+5)  ====>  7B + 5 = 4B + 20  ====>  7B - 4B = 20-5  ====>  3B = 15  ====>  B =  = 5.\r\n" );
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document.write( "Answer.  Second car (car B) is 5 years old.\r\n" );
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document.write( "         First car (car A) is 7*5 = 35 years old.\r\n" );
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\n" ); document.write( "There is a bunch of lessons on age word problems \r
\n" ); document.write( "\n" ); document.write( "    - Age problems and their solutions\r
\n" ); document.write( "\n" ); document.write( "    - A fresh formulation of a traditional age problem\r
\n" ); document.write( "\n" ); document.write( "    - Really intricate age word problem\r
\n" ); document.write( "\n" ); document.write( "    - Selected age word problems from the archive\r
\n" ); document.write( "\n" ); document.write( "    - Age problems for mental solution \r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solving age problems.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Age word problems\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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