Question

If electricity costs $0.09 per kilowatt hour, calculate how much it costs per megajoule

Answer 1

To determine the answer to this item, we are first to convert the given cost in the basis of megajoule. Hence, we are to convert kWh to megajoules.

   (1 kWh)(1000W/1kW)(1 J/s / 1 kW)(3600 s / 1 h)(1 MJ/10^6J)
   = Php 3,600 kwH

Substituting the known values,
     ($0.09 /kwH)(3,600 kW/h)
            = $324

ANSWER: $324