Jerry, an electrician, worked 7 months out the year. What percent of the year did he work?

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Jerry, an electrician, worked 7 months out the year. What percent of the year did he work?

We know that there are 12 months in a year.

Percentage worked = Months worked in a year / months in a year * 100%
Percentage worked = 7/12 * 100%
Percentage worked = 0.5833333 * 100%

Multiplying by 100 means we shift the decimal place 2 spaces to the right:
Percentage worked = 58.33%