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Mathematics, 26.04.2021 23:50 22emilyl530

Maria does weightlifting for 30 seconds and then aerobics for 60 seconds. She repeats this 10 times. If she does not take any breaks, how many minutes does she exercise?

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Maria does weightlifting for 30 seconds and then aerobics for 60 seconds. She repeats this 10 times....
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