document.write( "Question 1056994: Casper bought some pencils at 50 cents each. He had 3 dollars after the purchase. If he wanted to buy the same number of note pads at 80 cents each, he would be short $1.50. Write a linear equation for the number of pencils he purchased. Then solve it. \n" ); document.write( "

Algebra.Com's Answer #672058 by ikleyn(52787) $\"\"$ $\"About$

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\n" ); document.write( "Casper bought some pencils at 50 cents each. He had 3 dollars after the purchase. If he wanted to buy the same number
\n" ); document.write( "of note pads at 80 cents each, he would be short $1.50. Write a linear equation for the number of pencils he purchased. Then solve it.
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document.write( "Your equation is this\r\n" );
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document.write( "50n + 300 = n*80 - 150.   (*)   (written in cents !)\r\n" );
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document.write( "The left part is described by these sentences: \"Casper bought some pencils at 50 cents each. He had 3 dollars after the purchase.\"\r\n" );
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document.write( "The right part is this sentence: \"If he wanted to buy the same number of note pads at 80 cents each, he would be short $1.50.\"\r\n" );
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document.write( "Now solve equation (*).\r\n" );
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document.write( "300 + 150 = 80n - 50n,   or\r\n" );
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document.write( "30n = 450,\r\n" );
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document.write( "n =  = 15.\r\n" );
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document.write( "Answer. Thus you found that the number of pencils is 15.\r\n" );
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