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On a rainy day, every kid at Margo's school brings a raincoat, an umbrella, or both. And 18% of the kids bring both. The total number of umbrellas brought is twice the total number of raincoats.

What percent of the kids bring only an umbrella? 

 Feb 13, 2021
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x =  raincoats     2x = umbrellas

 

x-18 = coats only      2x-18 = umb only    18% = both          sums to  100%

 

 

x - 18      + 2x-18    + 18   = 100 %

3x = 118

x = 39. 33 %        then   2x-18  = 60.67 %   bring umbrella only

 Feb 13, 2021

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