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OpenStudy (anonymous):
20,000 people voted in each county, and there are 7 counties. What is the order of magnitude for the total number of people who voted?
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OpenStudy (anonymous):
7*20,000 = 140,000. Order of magnitude is number of digits minus 1. 6 - 1 = 5. There order of magnitude is 5.
OpenStudy (anonymous):
1.4 * 10^5 = 140,000 is another way to look at it.
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