Question 947145: A volleyball coach plans her daily practices to include 10 minutes of stretching, 2/3 of the entire practice scrimmageing, and the remaining practice time working on drills or specific skills. On Wednesday, the coach planned 100 minutes of stretching and scrimmaging. How lon, in hours, is the entire practice
Answer by htmentor(1343)   (Show Source):
You can put this solution on YOUR website! 2/3 of the entire practice time is spent scrimmaging, and 10 mins. is spent stretching.
If 100 mins. is spent on stretching and scrimmaging,
that means that 100 - 10 = 90 mins. was spent scrimmaging. So (2/3)t = 90 mins. where t= the total practice time.
Therefore, t = 3*90/2 = 135 mins. = 2 hrs and 15 mins.
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