Printed from https://www.nctm.org/pows/ | Copyright: National Council of Teachers of Mathematics | PoW ID: 3556
Make the Save
A hockey goalie is credited with a save when she stops a shot from going into the goal. The goalie's save percentage is calculated by dividing the number of saves made by the number of shots faced. That answer is rounded to three decimal places.
For example, a goalie who has faced 148 shots and made 136 saves would have a save percentage of 136/148 = .9189 or .919 when rounded off.
So far this season, Deepti has faced 131 shots and made 112 saves. What is her save percentage right now?
Deepti wants to raise her season save percentage to at least .900. Suppose she gets hot and saves every shot for the next few games. How many shots would she have to save to raise her season save percentage to .900?
Extra: Suppose that instead of saving every shot, Deepti saves 94 percent of the shots she faces in the next few games. How many shots would it take for her to raise her season percentage to .900 in that case?