document.write( "Question 153551: I'm really stuck on this particular question, which is:
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document.write( "A girl buys three apples and seven oranges for $4.56 .If an orange costs $0.28 more than an apple, how much does each fruit cost? \n" );
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Algebra.Com's Answer #113037 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! I'm really stuck on this particular question, which is: \n" ); document.write( "A girl buys three apples and seven oranges for $4.56 .If an orange costs $0.28 more than an apple, how much does each fruit cost? \n" ); document.write( "0 solutions \n" ); document.write( "------------------- \n" ); document.write( "A = price of apples \n" ); document.write( "R = price of oranges (O might look like a zero) \n" ); document.write( "3A + 7R = 456 \n" ); document.write( "R = A + 28 \n" ); document.write( "------- \n" ); document.write( "Substitute for R in eqn 1 \n" ); document.write( "3A + 7*(A+28) = 456 \n" ); document.write( "3A + 7A + 196 = 456 \n" ); document.write( "10A = 260 \n" ); document.write( "A = 26 cents \n" ); document.write( "R = 26 + 28 \n" ); document.write( "R = 54 cents\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |