there are 650, of that 650 48% do go, 44% doesn't go, how many students are not sure they will attend?
2 answers:
100% - (48% + 44%<span>) = 100% - 92% = </span><span>8%
</span><span>rule of three :
</span>
650 --- 100%
x ---- 8%
100x = 650 . 8
100x = 5200
x = 5200/100
x = 52
R : 52 (8%)
44% + 48% = 92%
48% go, 44% dont go...so thats 92% that either go or dont go....leaving u with 8% unsure
0.08(650) = 52 are not sure they will attend
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