Question 154103
A machine can fill 3864 cartons of milk in 0.4 hour.  How many cartons of milk can it fill per hour?

I came up this 7728.  Can you tell me if this is correct?
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3864/0.4 = x/1
cross-multiply 0.4x = 3864
x = 3864/0.4
x = 9660 cartons in 1 hour.
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Cheers,
Stan H.