document.write( "Question 558858: 5 oranges and 2 apples cost 61 pesos ; one orange and 4 apples cost 41 pesos . How much do an orange
\n" ); document.write( "and an apple cost? \n" ); document.write( "

Algebra.Com's Answer #363242 by mananth(16946) $\"\"$ $\"About$

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oranges pesos x
\n" ); document.write( "apples pesos y
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\n" ); document.write( "5 x + 2 y = 61 .............1
\n" ); document.write( "1 x + 4 y = 41 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -2
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "-10 x -4 y = -122
\n" ); document.write( "1 x 4 y = 41
\n" ); document.write( "Add the two equations
\n" ); document.write( "-9 x = -81
\n" ); document.write( "/ -9
\n" ); document.write( "x = 9
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "5 x + 2 y = 61
\n" ); document.write( "45 + 2 y = 61
\n" ); document.write( " 2 y = 61
\n" ); document.write( " 2 y = 16
\n" ); document.write( " y = 8.00
\n" ); document.write( "oranges pesos 9
\n" ); document.write( "apples pesos 8
\n" ); document.write( "m.ananth@hotmail.ca
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