Answer:
4/9
Explanation:
1/3 divided by 3= fill in 1/4 hour=1/9
1/9x4=4/9
you can set up a proportion: amt water / time
let 'w' = portion of pool
1/3 รท 3/4 = w / 1
cross-multiply:
1/3 = 3/4x
9x = 4
x = 4/9
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