document.write( "Question 132676This question is from textbook Algebra 1
\n" ); document.write( ": four oranges and five apples cost $3.56. three oranges and four apples cost $2.76. find the cost of an orange and the cost of an apple. \n" ); document.write( "
Algebra.Com's Answer #96959 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
four oranges and five apples cost $3.56. three oranges and four apples cost $2.76. find the cost of an orange and the cost of an apple.
\n" ); document.write( "-----------------
\n" ); document.write( "EQUATIONS:
\n" ); document.write( "4R + 5A = 3.56
\n" ); document.write( "3R + 4A = 2.76
\n" ); document.write( "------------------
\n" ); document.write( "Multiply 1st by 3 and 2nd by 4 to get:
\n" ); document.write( "12R + 15A = 3*3.56
\n" ); document.write( "12R + 16A = 4*2.76
\n" ); document.write( "--------------------
\n" ); document.write( "Substract 1st from 2nd to get:
\n" ); document.write( "A = 0.36 (price of an apple)
\n" ); document.write( "Substitute to solve for R:
\n" ); document.write( "4R + 5*0.36 = 3.56
\n" ); document.write( "4R = 1.76
\n" ); document.write( "R = 0.44 (prince of an orange)
\n" ); document.write( "===================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
\n" );