SOLUTION: Two groups of students on a fieldtrip is getting food in a fast food restaurant. The first group bought 7 burgers and 5 soft drinks for $28.50. The second group bought 6 burgers an

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Question 1185207: Two groups of students on a fieldtrip is getting food in a fast food restaurant. The first group bought 7 burgers and 5 soft drinks for $28.50. The second group bought 6 burgers and 4 soft drinks for $23.98. How much does one burger cost?
A. $2.45 per burger
B. $2.95 per burger
C. $1.57 per burger
D. $2.07 per burger

Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Plenty of this type have been solved here already.
Simple application for two-variable linear equation system


D price of drink
B price of burger
system%287B%2B5D=28.5%2C6B%2B4D=23.98%29

Before either trying sub or elim method, look at what happens if you subtract equation 2 from equation 1 (and then use this whichever method you want to).