document.write( "Question 73148This question is from textbook
\n" ); document.write( ": Can you help me?\r
\n" ); document.write( "\n" ); document.write( "A headset can be manufactured for $.17. The development cost is $150,000. Graph the funtion that reprsents the average cost of a head set. About how many must be manufactured to result in a cost of less than than $5 per headset?\r
\n" ); document.write( "\n" ); document.write( "Thanks! \n" ); document.write( "
Algebra.Com's Answer #52448 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
A headset can be manufactured for $.17. The development cost is $150,000. Graph the function that represents the average cost of a head set. About how many must be manufactured to result in a cost of less than than $5 per headset?
\n" ); document.write( ":
\n" ); document.write( "Let x = number of headsets, y = cost per headset in $
\n" ); document.write( "y = (.17x + 150000)/x
\n" ); document.write( ":
\n" ); document.write( "The graph should look something like this
\n" ); document.write( ":
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-5000%2C+50000%2C+-10%2C+45%2C+%28.17x+%2B+150000%29%2Fx+%29+\"
\n" ); document.write( ":
\n" ); document.write( "To find out how many needs to sold to cost less than $5, solve for x:
\n" ); document.write( "(.17x + 150000)/x < 5
\n" ); document.write( ":
\n" ); document.write( ".17x + 150000 < 5x, multiplied both sides by x
\n" ); document.write( ":
\n" ); document.write( ".17x - 5x < -150000
\n" ); document.write( "-4.83x < -150000
\n" ); document.write( ":
\n" ); document.write( "Get rid of the negatives, mult by -1. This reverses the inequality sign
\n" ); document.write( "4.83x > 150000
\n" ); document.write( "x > 150000/4.83
\n" ); document.write( "x > 31,056 have to be sold to bring the cost below $5
\n" ); document.write( ":
\n" ); document.write( "Did this make sense to you?\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );