document.write( "Question 1029325: Ted and Charlene sold cookies. After 5 days, they had sales totaling $40.00. Each day, their sales were $0.25 higher than on the previous day. What were the sales on the first day? \n" ); document.write( "

Algebra.Com's Answer #644360 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+s+\"$ = the sales on the 1st day
\n" ); document.write( "2nd day:
\n" ); document.write( " $\"+s+%2B+.25+\"$
\n" ); document.write( "3rd day:
\n" ); document.write( " $\"+s+%2B+2%2A.25+\"$
\n" ); document.write( "4th day:
\n" ); document.write( " $\"+s+%2B+3%2A.25+\"$
\n" ); document.write( "5th day:
\n" ); document.write( " $\"+s+%2B+4%2A.25+\"$
\n" ); document.write( "---------------
\n" ); document.write( "The sum is:
\n" ); document.write( " $\"+5s+%2B+10%2A.25+=+40+\"$
\n" ); document.write( " $\"+5s+=+40+-+2.5+\"$
\n" ); document.write( " $\"+5s+=+37.5+\"$
\n" ); document.write( " $\"+s+=+7.5+\"$
\n" ); document.write( "the sales on the 1st day were $7.50
\n" ); document.write( "check:
\n" ); document.write( "7.50
\n" ); document.write( "7.75
\n" ); document.write( "8.00
\n" ); document.write( "8.25
\n" ); document.write( "8.50
\n" ); document.write( "------
\n" ); document.write( "40.00 total \n" ); document.write( "

\n" );