document.write( "Question 799459: Apples sell for $1.90 per pound, and bananas sell for $0.75 per pound. Troy bought some apples and some bananas. Together they weighed 3.8 pounds, and cost $5.84.\r
\n" ); document.write( "\n" ); document.write( "Let p represent the number of pounds of apples Troy purchased. \r
\n" ); document.write( "\n" ); document.write( " Which equation represents the problem described here?\r
\n" ); document.write( "\n" ); document.write( " A. –1.15p + 2.85 = 5.84
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\n" ); document.write( " B. 1.15p + 2.85 = 5.84
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\n" ); document.write( " C. 1.15p + 2.85 = 3.8
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\n" ); document.write( " D. 1.9p + 0.75 = 3.8
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Algebra.Com's Answer #482697 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
You would first develop a system of two equations in two variables.\r
\n" ); document.write( "\n" ); document.write( "x count pounds apples
\n" ); document.write( "y count pounds bananas\r
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\n" ); document.write( "\n" ); document.write( "x+y=3.8 accounts for pounds.
\n" ); document.write( "1.9x+0.75y=5.84 accounts for cost. \r
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\n" ); document.write( "\n" ); document.write( "Use the pounds equation to substitute either for x or for y, into the cost equation, simplify, and see what matches.\r
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\n" ); document.write( "\n" ); document.write( "TRYING WHAT I SAID:-----------------------------------------\r
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\n" ); document.write( "\n" ); document.write( "\"x%2By=3.8\", gives \"y=3.8-x\"
\n" ); document.write( "Now substitute this formula for y into the cost equation.
\n" ); document.write( "\"1.9x%2B0.75%283.8-x%29=5.84\"
\n" ); document.write( "\"1.9x%2B0.75%2A3.8-0.75x=5.84\"
\n" ); document.write( "\"1.15x%2B2.85=5.84\"
\n" ); document.write( "So what does this match among your choices?
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