document.write( "Question 1137930: Darryl spent $55 on shirts. Tee shirts cost $5 and kind sleeve shirts cost $8. If he brought a total of 8 then how many of each kind did he buy? Write your answer using a complete sentence. \n" ); document.write( "

Algebra.Com's Answer #755807 by ikleyn(52864) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "Let x = # of t-shirts, y = # of  sleeve shirts.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "From the condition, you have these 2 equations\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "         x +    y =  8        (1)    (counting shirts)\r\n" );
document.write( "\r\n" );
document.write( "       5*x +  8*y = 55        (2)    (counting money)\r\n" );
document.write( " \r\n" );
document.write( "\r\n" );
document.write( "From equation (1), express  y = 8 - x  and substitute it into equation (2). You will get\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "       5x + 8*(8-x) = 55.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Express x and calculate answer\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    x =  = 3.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Then from equation (1),  y = 8 - 3 = 5.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "ANSWER.  3 t-shirts and 5 sleeve shirts.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "CHECK.   3*5 + 5*8 = 55 dollars.   ! Correct !\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "The problem solved using 2-equation setup and the Substitution method.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "--------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "This problem is similar to standard ticket problems.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "For such problems, read the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Using systems of equations to solve problems on tickets \r
\n" ); document.write( "\n" ); document.write( "    - Three methods for solving standard (typical) problems on tickets\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "From these lessons, learn on how to solve such problems once and for all.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Systems of two linear equations in two unknowns\".\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );