document.write( "Question 995988: Kofi bought six books and ten pencils from a store. Ama bought three books and twenty-two pencils of the same kind from that store. If each of them paid 17000 for the iterms, find the cost of
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Algebra.Com's Answer #614603 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "Kofi bought six books and ten pencils from a store. Ama bought three books and twenty-two pencils of the same kind from that store. If each of them paid 17000 for the iterms, find the cost of
\n" ); document.write( "a. Each pencil
\n" ); document.write( "b. Each book
\n" ); document.write( "c. Two books and four pencils
\n" ); document.write( "THANK YOU
\n" ); document.write( "

Let price of 1 book be B, and 1 pencil: P
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document.write( "Then we get: 6B + 10P = 17,000 ------- eq (i)
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document.write( "       Also, 3B + 22P = 17,000 ------- eq (ii)\r
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document.write( "To solve:
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document.write( "1) Multiply eq (ii) by - 2 to get eq (iii)
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document.write( "2) Add eqs (iii) & (1), which will eliminate B and give the value of P, or 1 pencil
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document.write( "3) Substitute value for P into any of the 2 original equations to solve and determine the value of B: a book \n" );
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