Thursday

July 24, 2014

July 24, 2014

Posted by **nono** on Sunday, September 20, 2009 at 2:15pm.

- math -
**MathMate**, Sunday, September 20, 2009 at 2:25pmFor every minute, the officejet does 1/18 of the work, while the laserjet does 1/20 of the work.

Together the two printers do (1/18+1/20)=19/180 of the work every minute.

If the two work together, and assuming the work can be shared to keep the two busy all the time, the work can be done in 1/(19/180) = 180/19 = 9.47 minutes.

- math -
**Reiny**, Sunday, September 20, 2009 at 2:29pmtime = 1/(1/18 + 1/20)

= 1/(19/180) = 180/19 = 9.47 minutes

**Related Questions**

algebra - the officejet printer can copy lisa's dissertation in 18 min. the ...

Algebra/Time - The officejet printer can copy Lisa's dissertation in 22 min. The...

algebra - the officejet printer can copy maria's dissertation in 18 min. The ...

Math - The officejet printer can copy Sue's dissertation in 18 min. The laserjet...

algebra - The OfficeJet printer can copy Maria's dissertation in 18 min. The ...

math - the officejet printer can copy Janet's dissertation in 10 minutes. The ...

algebra - the office jet printer can copy maria's dissertation in 16 min. the ...

Algebra II - The Officejet printer can print a dissertation in 10 minutes. It ...

Algebra II - The Officejet printer can print a dissertation in 10 minutes. It ...

Algebra - The officejet printer can copy sues dissertation in 16 minutes. The ...