+1314 On a rainy day, every kid at Margo's school brings a raincoat, an umbrella, or both. 8% of the kids bring both. The total number of kids with umbrellas is twice the total number of kids with raincoats. What percent of the kids bring only an umbrella?
+129852 For simplicity.....let there be 100 students in the school
So.....8 bring both
So....let x be the number who bring raincoats
And let 2x be the number that bring umbrellas
The ones that bring only raincoats = x - 8
The ones that bring only umbrellas = 2x - 8
So....
(Number who bring raincoats only) + (Number who bring both) + (Number who bring umbrellas only) = 100
(x - 8) + 8 + (2x - 8) = 100
3x - 8 = 100
3x = 108
x = 36
2x = 72
So
The number (percent) who bring only umbrellas = 2(36) - 8 = 64 (%)
