SOLUTION: A group of students bought 10 barbecues and 12 soft drinks at a price of $360. Another group bought 5 barbecues and 6 softdrinks at a price of $120. What is the price of a single

Question 942589: A group of students bought 10 barbecues and 12 soft drinks at a price of $360.
Another group bought 5 barbecues and 6 softdrinks at a price of $120. What is the price of a single barbecue and softdrink?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

barbecues
soft drinks
if a group of students bought barbecues and soft drinks at a price of $, then we have
.........eq.1
and another group bought barbecues and soft-drinks at a price of $, we have

.........eq.2

solve the system:
.........eq.1
.........eq.2
----------------------------------subtract 2 from 1

....substitute in 2
.........eq.2
...since
=> lines are parallel and there is no solution; this system is inconsistent
.........eq.1
.

so, we cannot determine what is the price of a single barbecue and soft-drink

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