document.write( "Question 1112320: You and a friend go to Taco Bell for lunch. You order three soft tacos and three burritos and your bill totals $11.25. Your friend’s bill is $10.00 for four soft tacos and two burritos. How much do soft tacos cost? How much do burritos cost? Write a linear system of equations that can be used to solve this problem. \n" ); document.write( "
Algebra.Com's Answer #727343 by ikleyn(52788)\"\" \"About 
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document.write( "The system of equation the problem asks to write is THIS:\r\n" );
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document.write( "3T + 3B = 11.25     (1)   (\"You order three soft tacos and three burritos and your bill totals $11.25\")\r\n" );
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document.write( "4T + 2B = 10.00     (2)   (\"Your friend’s bill is $10.00 for four soft tacos and two burritos\")\r\n" );
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document.write( "To solve it, you may use the elimination method. For it, multiply eq(1) by 2 (both sides).  Multiply eq(2) by 3 (both sides).\r\n" );
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document.write( "Then subtract eq(1) (modified) from eq(2) (modified).\r\n" );
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document.write( "In this way you eliminate the unknown B and obtain a single equation for the unknown T.\r\n" );
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document.write( "Solve it for T.\r\n" );
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document.write( "When you get the value of T, substitute it into either of two equations (1) or (2) and find B.\r\n" );
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document.write( "That is all.\r\n" );
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\n" ); document.write( "If you want to see many other problems solved in this way, look into the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Oranges and grapefruits \r
\n" ); document.write( "\n" ); document.write( "    - Using systems of equations to solve problems on tickets \r
\n" ); document.write( "\n" ); document.write( "    - Three methods for solving standard (typical) problems on tickets\r
\n" ); document.write( "\n" ); document.write( "    - Using systems of equations to solve problems on shares \r
\n" ); document.write( "\n" ); document.write( "    - Using systems of equations to solve problems on investment\r
\n" ); document.write( "\n" ); document.write( "    - Two mechanics work on a car \r
\n" ); document.write( "\n" ); document.write( "    - The Robinson family and the Sanders family each used their sprinklers last summer\r
\n" ); document.write( "\n" ); document.write( "    - Roses and vilolets \r
\n" ); document.write( "\n" ); document.write( "    - Counting calories and grams of fat in combined food\r
\n" ); document.write( "\n" ); document.write( "    - HOW TO algebreze and solve this problem on 2 equations in 2 unknowns \r
\n" ); document.write( "\n" ); document.write( "    - One unusual problem to solve using system of two equations \r
\n" ); document.write( "\n" ); document.write( "    - Solving mentally word problems on two equations in two unknowns \r
\n" ); document.write( "\n" ); document.write( "    - Solving systems of non-linear equations by reducing to linear ones \r
\n" ); document.write( "\n" ); document.write( "    - System of equations helps to solve a problem for the Thanksgiving day\r
\n" ); document.write( "\n" ); document.write( "    - Using system of two equations to solve the problem for the day of April, 1 \r
\n" ); document.write( "\n" ); document.write( "in this site.\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 \"Systems of two linear equations in two unknowns\".\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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