SOLUTION: At the local convenience store, 7 bags of chips and 3 containers of dip cost $33. However, 3 bags of chips
and 4 containers of dip cost $25. What is the cost of one bag of chips a
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-> SOLUTION: At the local convenience store, 7 bags of chips and 3 containers of dip cost $33. However, 3 bags of chips
and 4 containers of dip cost $25. What is the cost of one bag of chips a
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Question 1149438: At the local convenience store, 7 bags of chips and 3 containers of dip cost $33. However, 3 bags of chips
and 4 containers of dip cost $25. What is the cost of one bag of chips and one container of dip? Answer by ikleyn(52786) (Show Source):
"b" for bags; "c" for containers.
The system of 2 equations in 2 unknowns is
7b + 3c = 33
3b + 4c = 25.
Solve using determinants (Cramer's rule).
b = = 3 dollar for bag.
Now, substituting this value b= 3 into first equation, you get
c = (33-7*3)/3 = 4 dollars for container.
