document.write( "Question 835863: A pile of 15 notebooks is111/2cm high. What is the thickness of each notebook? \n" ); document.write( "
Algebra.Com's Answer #503757 by stanbon(75887)\"\" \"About 
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A relief organization supplies blankets, cots, and lanterns to victims of fires, floods, and other natural disasters. One week, the organization purchased 15 blankets, 5 cots, and 10 lanterns for a total cost of $1150. The next week, at the same prices, the organization purchased 20 blankets, 10 cots, and 15 lanterns for a total cost of $1800. The third week, at the same prices, the organization purchased 10 blankets, 15 cots, and 5 lanterns for a total cost of $1325. Find the cost of one blanket, the cost of one cot, and the cost of one lantern.
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\n" ); document.write( "Equations:
\n" ); document.write( "15b + 5c + 10L = 1150
\n" ); document.write( "20b + 10c + 15L = 1800
\n" ); document.write( "10b + 15c + 5L = 1325
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\n" ); document.write( "I used a matrix function on my TI-84 to get:
\n" ); document.write( "b = 25 (# of blankets)
\n" ); document.write( "c = 55 (# of cots)
\n" ); document.write( "L = 50 (# of lanterns)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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