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Mathematics 23 Online
OpenStudy (anonymous):

Reggie can line a football field in 120 minutes. Rosalinda can line a football field in 80 minutes. If they work together, how many minutes does it take them to line a football field? a. 40 minutes b.80 minutes c. 200 minutes d. 240 minutes HELP?!

OpenStudy (amistre64):

define a unit rate for 1 minute. how much work is done by each in 1 minute?

OpenStudy (amistre64):

logically, if 1 person can do it in 80 minutes, then with some help they can do it in less then 80 minutes ...

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