SOLUTION: A low pressure sodium lamp is used for a security light. The light is on for an average of 14 hours each day during the month of December. If the light bill for the security light

Question 1101550: A low pressure sodium lamp is used for a security light. The light is on for an average of 14 hours each day during the month of December. If the light bill for the security light for December is $1.80 at a 6.9 cent per kilowatt-hour rate, what is the wattage of the lamp?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
[ total cost in cents / hours of use ] / [ cents ] / [ kw x hrs ] = [ kw ]

( 1000 watts = 1 kw )
The lamp is 60 watts
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