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November 21, 2014

November 21, 2014

Posted by **Sue** on Saturday, September 12, 2009 at 4:02pm.

Any help would be greatly appreciated.

- Math -
**bobpursley**, Saturday, September 12, 2009 at 4:07pmIn 18*22min, laserjet can do 22, and the officejet can do 18. So the rate is

rate= number/time= (18+22)/22*18=40/396min = 1dissertation/9.9 min

that answers it, but formally

dissertations= rate*time

time= dissertations/rate= 1dissertation/(1dissertation/9.9min)= 9.9 min

- Math -
**Sue**, Saturday, September 12, 2009 at 4:08pmWould it be 99/10?

- Math -
**Sue**, Saturday, September 12, 2009 at 4:08pmThank you for your help.

- Math -
**bobpursley**, Saturday, September 12, 2009 at 4:09pmyes, but few folks say 99/10 min, most would say 9.9 minutes, or 9 minutes 54seconds.

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