SOLUTION: If Maribel can do a project in three hours and Angelo can do the same project in x hours, which expression represents the rate of Angelo and Maribel working together?

Question 1121398: If Maribel can do a project in three hours and Angelo can do the same project in x hours, which expression represents the rate of Angelo and Maribel working together?
Answer by josgarithmetic(39626) (Show Source): You can put this solution on YOUR website!
Maribel,

Angelo,

Maribel and Angelo working combined,

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