Jim can fill a pool carrying bucks of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?

Question

bobpursley · Answer

The rate for each is jim 1pool/30min Sue 1pool/45min Tony 1 pool/90min The combined rate is the sum of all. Now, do the volume=rate*time 1pool=(1/30 +1/45 +1/90) time solve for time.

rikki · Answer

lim at x approaches negative infinity (sin^2x+cos^2x)

kyla · Answer

wow that looks pretty hard i really don't know about that one! good luck!