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A machine seals 4545 packages in 55 minutes at a constant rate. At this rate, how many packages does the machine seal in 88 minutes?

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Answer: B (7272)

The machine seals 45÷5=945 \div 5=9 packages per minute. In 88 minutes, the machine seals 9×8=729 \times 8=72 packages.

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student-produced responses in Math
195

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