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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
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Quote:
 Originally Posted by Basko 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?
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
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Quote:
 Originally Posted by Basko 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?
25H + 12D = 83.75

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? Thanks from Greens Last edited by skipjack; May 16th, 2019 at 01:35 PM.

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