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A homeowner must reduce the use of his home’s electricity. The home currently consumes kwh (kilowatt hours) of electricity per day, and the homeowner must reduce the use by . Find the amount of electricity that will be used after the reduction in two different ways, using two different scale factors.  

Find of the amount of electricity used.

Once you have found the amount of reduction, subtract that from the original amount of power consumption.

If you reduce the use of electricity by , what percentage is left?