Raymond B. answered 03/20/23
Math, microeconomics or criminal justice
1/t = 1/30+1/40
multiply by 120t
120= 4t+3t= 7t
t= 120/7 = 17 1/7 hours working together
Emily A.
asked 11/02/21One grocery clerk can stock a shelf in 30 min. A second clerk requires 40 min to stock the same shelf. How long would it take to stock the shelf if the two clerks worked together?
Raymond B. answered 03/20/23
Math, microeconomics or criminal justice
1/t = 1/30+1/40
multiply by 120t
120= 4t+3t= 7t
t= 120/7 = 17 1/7 hours working together
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