Asked by ja'Sae

A shop sells one-pound bags of peanuts for $2 and three-pound bags of peanuts for $5.
If 9 bags are purchased for a total cost of $36, how many three-pound bags were
purchased?
Answered by PsyDAG
O + T = 9

T = 9 - O

2O + 5T = 36

Substitute 9-O for T in last equation and solve for O. Insert that value into the first equation and solve for T. Check by inserting both values into the second equation.
Answered by max
the answer is 9
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