Adishwasher uses 700 watts each time it is run. the cycle takes one hour. it is run 150 times per year. how much energy does it use in one year

To first solve this problem, we have to set up ratios based on the data given. First, we know that the dishwasher use rate is 700 watts/run. Next, we know 1 hr/run. Finally, we know there are 150 runs/year. To calculate how much energy per year, we arrange the ratios to give a final answer of watts/year. Doing this we get the following: 150 runs/year * 700 watts/run = 105,000 watts/year which is also equal to 105 kw/year. The ration of 1 hour per run does not make a difference in this question and is not needed for the final answer.

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