19/110 = ?/330
330÷110= 3
so 3×110=330
19×3=57
whatever u do times the denominator by u have to do the same for the numerator.
therefore 57 people chose volleyball.
hope u understand my explanation.
19 x
---- = -----
110 330
using cross products
19 * 330 = x * 110
divide by 110
19 * 330/110 = x
57 people
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