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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 
Senior Member Joined: Mar 2019 From: TTF area Posts: 136 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: 3,016 Thanks: 1600  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: 20,969 Thanks: 2219 
$2.75

May 15th, 2019, 03:45 PM  #5 
Senior Member Joined: Aug 2012 Posts: 2,386 Thanks: 746  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. 

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