document.write( "Question 842469: if 7 students of a middle school are seated in a gymnasium on each bench in a row, 15 students remain. How many rows are there in the gymnasium? \n" ); document.write( "

Algebra.Com's Answer #507563 by Theo(13342) $\"\"$ $\"About$

You can put this solution on YOUR website!
you can't find one solution to this.
\n" ); document.write( "there are multiple solutions.
\n" ); document.write( "you would solve it as follows:
\n" ); document.write( "y = number of students
\n" ); document.write( "x = number of rows.
\n" ); document.write( "the number of students will be equal to the number of rows * 7 + 15.
\n" ); document.write( "your equation would be:
\n" ); document.write( "y = 7x + 15
\n" ); document.write( "you can set up a table and have x going up one at a time and you will get:
\n" ); document.write( "

\r\n" );
document.write( "x             y\r\n" );
document.write( "1             22\r\n" );
document.write( "2             29\r\n" );
document.write( "3             36\r\n" );
document.write( "4             43\r\n" );
document.write( "5             50\r\n" );
document.write( "etc.\r\n" );
document.write( "

\n" ); document.write( "what this means is that you can have any number of rows and still have the number of students exceeding the number of rows available by 15.
\n" ); document.write( "to find one solution, you would need some additional information that would help narrow it down, like total number of students is equal to 50.
\n" ); document.write( "then you can solve using the equation.,
\n" ); document.write( "the equation is:
\n" ); document.write( "y = 7x + 15
\n" ); document.write( "y = 50 make the equation become:
\n" ); document.write( "50 = 7x + 15
\n" ); document.write( "subtract 15 from both sides of this equation to get:
\n" ); document.write( "35 = 7x
\n" ); document.write( "divide both sides of this equation by 7 to get:
\n" ); document.write( "x = 5
\n" ); document.write( "you can also graph the equation to see that there are multiple solutions available unless you have additional information to help narrow it down.
\n" ); document.write( "the graph would look like:
\n" ); document.write( " $\"graph%28600%2C600%2C-2%2C10%2C-5%2C100%2C7x%2B15%29\"$
\n" ); document.write( "the x-axis is the number of rows.
\n" ); document.write( "the y-axis is the number of students.\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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