document.write( "Question 63235: Can you please help with this word problem.\r
\n" ); document.write( "\n" ); document.write( "A man goes into a grocery store and buys a grapefruit and a toy ball. A 7% tax is applied to the price of non-food items. If the total bill is $5.15, including $0.18 in tax on the toy ball, what are the prices of the grapefruit and the ball?
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Algebra.Com's Answer #43994 by Cintchr(481)\"\" \"About 
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food + ball + tax = total
\n" ); document.write( "1. \"+f+%2B+b+%2B+.07b+=+5.15+\"
\n" ); document.write( "and
\n" ); document.write( "2. \"+.07b+=+.18+\"
\n" ); document.write( "solve for b
\n" ); document.write( "3. \"+b+=+2.57+\" (rounded)
\n" ); document.write( "Plug 2 and 3 into 1
\n" ); document.write( "\"+f+%2B+2.57+%2B+.18+=+5.15+\"
\n" ); document.write( "combine like terms
\n" ); document.write( "\"+f+%2B+2.75+=+5.15+\"
\n" ); document.write( "subtract 2.57 from both sides
\n" ); document.write( "\"+f+=+2.40+\"\r
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\n" ); document.write( "\n" ); document.write( "CHECK:
\n" ); document.write( "food + ball + tax = total
\n" ); document.write( "\"+2.40+%2B+2.57+%2B+.18+=+5.15+\"
\n" ); document.write( "\"+4.97+%2B+.18+=+5.15+\"
\n" ); document.write( "\"+5.15+=+5.15+\"\r
\n" ); document.write( "\n" ); document.write( "YES!!!\r
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