SOLUTION: In June ,Katherine bought 21 cans of food and 3 bags of liter for a total of $42 .in July she spent $60 on 32 cans of food and 4 bags of liters .What is the cost of one bag of lite

SOLUTION: In June ,Katherine bought 21 cans of food and 3 bags of liter for a total of $42 .in July she spent $60 on 32 cans of food and 4 bags of liters .What is the cost of one bag of lite

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Question 476654: In June ,Katherine bought 21 cans of food and 3 bags of liter for a total of $42 .in July she spent $60 on 32 cans of food and 4 bags of liters .What is the cost of one bag of liter?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
21n+3p=42
32n+4p=60
84n+12p=168
96n+12p=180
12n=12
n=1
p=7
One bag of litter costs $7..
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