document.write( "Question 974693: You have $85.00 in your bank account and start saving $15 per week. Your friend has $610 and is withdrawing $10 per week. Using substitution, determine the break even point and explain what the solution means. Thank you :) \n" ); document.write( "

Algebra.Com's Answer #596566 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+A+\"$ = the current amount in
\n" ); document.write( "the bank accounts
\n" ); document.write( "Let $\"+w+\"$ = number of weeks passed
\n" ); document.write( "(1) $\"+A+=+85+%2B+15w+\"$
\n" ); document.write( "(2) $\"+A+=+610+-+10w+\"$
\n" ); document.write( "------------------------
\n" ); document.write( "The break even point is where the two
\n" ); document.write( "accounts are equal
\n" ); document.write( " $\"+85+%2B+15w+=+610+-+10w+\"$
\n" ); document.write( " $\"+25w+=+525+\"$
\n" ); document.write( " $\"+w+=+21+\"$
\n" ); document.write( "In 21 weeks, their accounts are equal\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );