document.write( "Question 1130884: Jackie got a loan at 7% and another at 10% amounting to php 27 000. If the annual interest on both is php 2 250, how much did she borrow at each rate?! \n" ); document.write( "
Algebra.Com's Answer #747502 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( " x + y = 27000 (1) (where x and y are amounts of the loans)\r\n" ); document.write( "0.07x + 0.10y = 2250 (2)\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "From eq(1), express x = 27000-y and substitute it into eq(2), replacing y. You will get\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "0.07*(27000-y) + 0.10y = 2250.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Solve it for y. Then evaluate x = 27000-y.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "--------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If you need more details, or if you want to see other similar problems solved by different methods, look into the lesson \r \n" ); document.write( "\n" ); document.write( " - Using systems of equations to solve problems on investment\r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You will find there different approaches (using one equation or a system of two equations in two unknowns), as well as \n" ); document.write( "different methods of solution to the equations (Substitution, Elimination).\r \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The referred lesson is the part of this online textbook under the topic \"Systems of two linear equations in two unknowns\".\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |