Mathematics, 23.09.2019 10:30 Gheaton6274

Alanna can detail a car in 45 minutes. robbie can detail a car in 30 minutes. if they work together, how many minutes does it take them to detail a car?
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Alanna can detail a car in 45 minutes. robbie can detail a car in 30 minutes. if they work together, how many minutes does it take them to detail a car? asap: )

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Alanna can detail a car in 45 minutes. robbie can detail a car in 30 minutes. if they work together, how many minutes does it take them to detail a car?
asap: )