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21 April, 00:44

A survey found that 12 out of every 15 people in the United states prefer eating at a restaurant over cooking at home. if 400 people selected eating at a restaurant on the survey, how many people took the survey ...

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  1. 21 April, 02:12
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    On a certain survey it says:

    12 out 15 people in the United States prefer eating at the restaurant rather than home.

    To know how many percent is this.

    => 12 / 15

    => 0.8 which is also 80%

    Now, the 80% of the those people in the survey is 400.

    Find the total number of people who took the survey.

    Since we already have the 80%, we need to find the number of 20%

    => 400 x 20%

    => 400 x. 20

    => 80

    => 400 + 80

    => 480 = > the total number of people who took the survey
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