SOLUTION: a shop has one-pound bags of peanuts for $2 and three-pound bags of peanuts for $5.50. if you buy 5 bags and spend $17, how many of each bag did you buy?
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Question 801198: a shop has one-pound bags of peanuts for $2 and three-pound bags of peanuts for $5.50. if you buy 5 bags and spend $17, how many of each bag did you buy?
You can put this solution on YOUR website! Let = number of 1 pound bags
Let = number of 3 pound bags
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(1)
(2)
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Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
and, since
(1)
(1)
You bought 3 1-pound bags and
2 3-pound bags
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check:
(2)
(2)
(2)
(2)
OK
