
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
May 15th, 2019, 12:13 PM  #1 
Newbie Joined: May 2019 From: London Posts: 18 Thanks: 0  what is the cost of each sandwich?
25 ham barbecue sandwiches and 12 drinks cost \$83.75. 50 ham barbecue sandwiches and 27 drinks cost \$171.25. What is the cost of each sandwich?
Last edited by skipjack; May 15th, 2019 at 01:06 PM. 
May 15th, 2019, 12:19 PM  #2 
Member Joined: Mar 2019 From: TTF area Posts: 83 Thanks: 1  You might want to edit your latex so people can clearly read the post. Last edited by skipjack; May 15th, 2019 at 01:06 PM. 
May 15th, 2019, 01:01 PM  #3  
Math Team Joined: Jul 2011 From: Texas Posts: 2,940 Thanks: 1545  Quote:
50H + 27D = 171.25 Double every term in the 1st equation, then subtract from the 2nd ... solve for D, the cost of a drink, then determine the cost of a sandwich, H. Last edited by skipjack; May 15th, 2019 at 01:07 PM.  
May 15th, 2019, 01:12 PM  #4 
Global Moderator Joined: Dec 2006 Posts: 20,746 Thanks: 2133 
$2.75

May 15th, 2019, 03:45 PM  #5 
Senior Member Joined: Aug 2012 Posts: 2,321 Thanks: 714  A man just finished painting his house and needs something more. At the hardware store, the clerk shows him what he wants and says, "one is \$1." "Fine," says the man, "I took 600, so here's \$3." What had he bought? Last edited by skipjack; May 16th, 2019 at 01:35 PM. 

Tags 
algebra, arithmetic, cost, sandwich 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Limit problem  should I use the sandwich theorem?  123qwerty  PreCalculus  13  December 27th, 2015 08:27 AM 
sandwich measurable set  James1973  Advanced Statistics  0  October 14th, 2013 02:42 AM 
going for average cost function to total cost function  pomazebog  Calculus  5  March 28th, 2012 09:15 PM 
Cost function  Ian McPherson  Calculus  1  November 25th, 2011 01:15 PM 
Cost of Car  symmetry  Algebra  8  February 2nd, 2007 03:55 PM 