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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? (2 points)
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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? (2 points)

User Tewr
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1 Answer

3 votes
The answer is 18 minutes
User Nsilva
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