SOLUTION: Two groups of people order food at a restaurant. One group orders 4 hamburgers and 7 sandwiches for $34.50. The other group orders 8 hamburgers and 3 sandwiches for $30.50. Find
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-> SOLUTION: Two groups of people order food at a restaurant. One group orders 4 hamburgers and 7 sandwiches for $34.50. The other group orders 8 hamburgers and 3 sandwiches for $30.50. Find
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Question 433086: Two groups of people order food at a restaurant. One group orders 4 hamburgers and 7 sandwiches for $34.50. The other group orders 8 hamburgers and 3 sandwiches for $30.50. Find the cost of each item.
Thank you :) Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = cost of sandwich
Let = cost of hamburger
given:
(1)
(2)
-----------------
Multiply both sides of (1) by
and subtract (2) from (1)
(1)
(2)
Plug this back into (1) or (2)
(2)
The cost of a sandwich is $3.50
The cost of a hamburger is $2.50
