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Dave found that about 8/9 of the students in his class have a cell phone. What percent of the students in his class do not have a cell phone? Write your answer as a percent and as a decimal. Show work.



Answer :

P = (1 - 8/9) * 100 % = 1/9 * 100 % = 100/9 % = 11 1/9 % = 11.11... %
need to have same denominator to subtract
1=9/9
9/9-8/9=1/9
as a decimal  1/9= .11111
as a % multiply by 100=11.11%

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