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Zak purchased flashlights for $5.50 each and multi-packs of alkaline D batteries for $4.00 each. Zak purchased 16 items for a total of $82, excluding tax. Formulate a system of equations that can be used to determine the number of flashlights, f, and number of packs of batteries, b, Zak purchased then solve the system using substitution. Check your work algebraically. If you can please help before tomorrow that would be gratefully appreciated. Thank you in advance!
Sagot :
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