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January 28, 2015

January 28, 2015

Posted by **Kaley** on Monday, March 16, 2009 at 9:31pm.

the answer is 2 hrs and 24 min. How did they come up with that?

- math -
**bobpursley**, Monday, March 16, 2009 at 10:36pmIn twelve hours, sally can paint 3, and john 2, or five houses together.

combined rate=5houses/12hours

1house=rate*time=5/12 * time

time= 12/5 hrs

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