Mathematics, 11.02.2020 05:33 dearydn22

A swimming pool is open for 7 1/2 hours during a day. The pool keeps one lifeguard on duty at a time, and each lifeguard’s shift is 1 1/2 hours long. How many shifts are there per day?

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A swimming pool is open for 7 1/2 hours during a day. The pool keeps one lifeguard on duty at a time...

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