document.write( "Question 1195141: Javonne purchased some art supplies and paid for
\n" ); document.write( "them with a $20 bill. The cashier handed her c
\n" ); document.write( "dollars in change, which was a mistake. To ﬁx the
\n" ); document.write( "mistake, Javonne returned $1.00 to the cashier. lf
\n" ); document.write( "she purchase price was twice the amount of change
\n" ); document.write( "that Javonne was originally given, what is the value
\n" ); document.write( "of c? \n" ); document.write( "

Algebra.Com's Answer #827548 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "Javonne purchased some art supplies and paid for them with a $20 bill.
\n" ); document.write( "The cashier handed her c dollars in change, which was a mistake.
\n" ); document.write( "To ﬁx the mistake, Javonne returned $1.00 to the cashier.
\n" ); document.write( "lf she purchase price was twice the amount of change
\n" ); document.write( "that Javonne was originally given, what is the value of c?
\n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "From the condition, the price of the purchase was 20-c+1 dollars.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "It is given that this price is twice as the amount of \"c\",\r\n" );
document.write( "\r\n" );
document.write( "so we write an equation\r\n" );
document.write( "\r\n" );
document.write( "    20 - c + 1 = 2c.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "It can be solved in couple of lines\r\n" );
document.write( "\r\n" );
document.write( "    20 + 1 = 2c + c\r\n" );
document.write( "\r\n" );
document.write( "       21  =   3c\r\n" );
document.write( "\r\n" );
document.write( "        c  =   21/3 = 7.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "ANSWER.  The value of  \"c\"  is  7  dollars.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "----------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "This problem is good (and such problems are good), when a teacher wants to train a young pupils
\n" ); document.write( "to setup and to solve non-standard problems.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "At such circumstances, than simpler a solution approach is, than it is better.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "It is why I came with this solution.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "With it, using one single equation for setup, the solution can be explained
\n" ); document.write( "to a 5-th grade student, who just started to learn problems with one equation,
\n" ); document.write( "but did not learn systems of equations, yet.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );