Mathematics, 14.09.2019 00:30, hoyanna69

Ana and bella are sisters. they are responsible for keeping the
family's driveway clear of snow. if they work together they can
complete the shoveling in 30 minutes.
one day ana had to do the job alone. it took her 40 minutes. how long
would it have taken bella to shovel the same amont alone? you can
assume that each girl always shovels at a constant speed.

Answers: 2

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Ana and bella are sisters. they are responsible for keeping the
family's driveway clear of sno...