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Mathematics 13 Online
OpenStudy (anonymous):

Max can wash and wax a car in 60 min. His older sister Kayla can do the same job in 45 min. How long will the car take them if they work together?

OpenStudy (anonymous):

any idea ?

OpenStudy (anonymous):

52.5?

OpenStudy (anonymous):

Max in 60 min. Kayla in 45 min how you got this result ?

OpenStudy (anonymous):

(60+45)/2 = ?

OpenStudy (anonymous):

= 52,5 you are right sure

OpenStudy (anonymous):

nice good luck bye bye

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