SOLUTION: Big Giant Supermarket will sell 5 large jars and 2 small jars of their peanut butter for $36. They will also sell 2 large jars and 5 small jars for $27 what is the price of each ja

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Big Giant Supermarket will sell 5 large jars and 2 small jars of their peanut butter for $36. They will also sell 2 large jars and 5 small jars for $27 what is the price of each ja      Log On


   

Question 241705: Big Giant Supermarket will sell 5 large jars and 2 small jars of their peanut butter for $36. They will also sell 2 large jars and 5 small jars for $27 what is the price of each jar?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
5L+2S=36 MULTIPLY BY -2
2L+5S=27 MULTIPLY BY 5 & ADD
-10L-4S=-72
10L+25S=135
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21S=63
S=63/21
S=$3 FOR THE SMALL JAR.
5L+2*3=36
5L+6=36
5L=36-6
5L=30
L=30/5
L=$6 FOR THE LARGE JAR.
PROOF:
2*6+5*3=27
12+15=27
27=27