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Andy is scuba diving. He starts at sea level and then descends 10 feet in 2 1/2 minutes. How would you represent Andy’s descent as a unit rate? Express your answer as an integer. If he continues at this rate, where will Andy be in relation to sea level after 6 minutes?

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Final answer:

Andy's descent as a unit rate is 4 feet per minute. After 6 minutes, Andy would be 24 feet below sea level.

Step-by-step explanation:

To represent Andy's descent as a unit rate, we can divide the change in altitude (10 feet) by the time taken (2 1/2 minutes). First, convert the time to minutes: 2 1/2 minutes = 2.5 minutes. Then, divide the change in altitude by the time taken: 10 feet / 2.5 minutes = 4 feet per minute. This represents Andy's descent as a unit rate.

If Andy continues at this rate for 6 minutes, we can calculate his new altitude in relation to sea level. Multiply the unit rate by the number of minutes: 4 feet per minute * 6 minutes = 24 feet. Therefore, after 6 minutes, Andy would be 24 feet below sea level.

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