document.write( "Question 1054839: Sherry bought 15 plain and glazed doughnuts for $4.65. Each plai doughnut cost.10cents less than a glazed doughnut. How many of each did she buy? \n" ); document.write( "

Algebra.Com's Answer #670077 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+n+\"$ = number of plain doughnuts
\n" ); document.write( " $\"+15+-+n+\"$ = number of glazed doughnuts
\n" ); document.write( "Let $\"+c+\"$ = cost of a glazed doughnut
\n" ); document.write( " $\"+c+-+10+\"$ = cost of a plain doughnut
\n" ); document.write( "-----------------------------------------
\n" ); document.write( "(1) $\"+%28+c+-+10+%29%2An+%2B+c%2A%28+15+-+n+%29+=+465+\"$ ( in cents )
\n" ); document.write( "(1) $\"+c%2An+-+10n+%2B+15c+-+c%2An+=+465+\"$
\n" ); document.write( "(1) $\"+15c+-+10n+=+465+\"$
\n" ); document.write( "(1) $\"+15c+=+10n+%2B+465+\"$
\n" ); document.write( "(1) $\"+c+=+%28+2%2F3+%29%2An+%2B+31+\"$
\n" ); document.write( "-------------------------
\n" ); document.write( "I'll try $\"+n=3+\"$
\n" ); document.write( "(1) $\"+c+=+2+%2B+31+\"$
\n" ); document.write( "(1) $\"+c+=+33+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+c+-+10+=+23+\"$
\n" ); document.write( "-----------------------
\n" ); document.write( "(1) $\"+%28+c+-+10+%29%2An+%2B+c%2A%28+15+-+n+%29+=+465+\"$
\n" ); document.write( "(1) $\"+23%2A3+%2B+33%2A12+=+465+\"$
\n" ); document.write( "She bought 3 plain doughnuts
\n" ); document.write( "She bought 12 glazed doughnuts\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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