Maria, an experienced shipping clerk, can fill a certain order in 11 hours. Felipe, a new clerk, needs 13 hours to do the same job. Working together, how long will it take them to fill the order?

Maria rate = 1/13 job/hr

Felipe rate = 1/16 job/hr

Together rate = 1/x job/h

Step-by-step explanation: rate + rate = Together rate

1/13 + 1/16 = 1/x

16x + 13x = 13*16

29x = 13*16

x = 7.17 hrs = 7 hr 10 min 12 seconds (time to do the job together)

Cheers,

Rubberduck100000.

-2 is the right

mx+89b(-98)nb

step-by-step explanation: