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Need help: Rational Expressions and Functions
http://i50.tinypic.com/1431wn.png
Thanks in advance.
 one year ago
 one year ago
Need help: Rational Expressions and Functions http://i50.tinypic.com/1431wn.png Thanks in advance.
 one year ago
 one year ago

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heiBest ResponseYou've already chosen the best response.1
a) stacie and nick fold napkin while jeff and tiffany set table
 one year ago

FeoNeo33Best ResponseYou've already chosen the best response.0
^ Yeah, agreed. Lol, now that I look at it, 'a)' is very easy...
 one year ago

heiBest ResponseYou've already chosen the best response.1
jeff and tiffany done their job first in 61.25min not sure it this right
 one year ago

FeoNeo33Best ResponseYou've already chosen the best response.0
^ Thanks, still gotta do it myself, I'll keep these answers in consideration.
 one year ago

heiBest ResponseYou've already chosen the best response.1
wait that was a wrong one Xd, arithmetic error, here the explanation: first we know that jeff and tiffany will done their jobs first, and their work rate is: (4/3)table per min and (4/2)table per min, when they do works together, the work rate is 4/3+4/2 = 10/3 dw:1338131640256:dw Now we can find the progress of the other 2 pair when jeff and tifany done their place setting job: rate of work of stacie and nick : 4/3 + 4/3.5 = 52/21 dw:1338131810747:dw x is the number of table completed when jeff and tiffany done their setting job. that mean 81/7 of table left undone( 45  234/7 = 81/7) now tiffany and jeff will help the other two and the work rate is : 4/3+4/4+4/5+4/3.5 = 449/105 dw:1338131995415:dw so the total time to complete all 45 tables for both folding and setting is: time taken = 13.5min + 1215/449 min i think this right
 one year ago
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