A dishwasher uses about 1400 watts of power. If the power company charges 9 cents per kilowatt-hour, how much does it cost to run a dishwash

Note  .... 1400 watts = 1.4kw

[1.4 kw  x 16 hrs.  x .09/kwhr]  =  about $2. 02 

$${\mathtt{1\,400}}{\mathtt{\,\times\,}}{\mathtt{16}} = {\mathtt{22\,400}}$$     This is the number of watt-hours (Wh ) in a month

this is equal to 22,400 kWh.

9(cent/kWh)*22,4kWh=...cent