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Mathematics, 24.07.2021 05:30 taleiayarbough2940

Roger can shovel his family's driveway in 1 hour. His older sister, Alexis, can shovel the driveway in 1/2 hour. If they work together, then how many minutes will it take them to shovel the driveway?

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Roger can shovel his family's driveway in 1 hour. His older sister, Alexis, can shovel the driveway...

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