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Mathematics 9 Online
OpenStudy (anonymous):

Write an expression that can be used to solve the problem. During practice, it took Shawn 27 min to swim 81 laps. If Shawn swam at a constant rate, how long did it take him to complete each lap?

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (skullpatrol):

What does the phrase "each lap" mean?

OpenStudy (anonymous):

no

OpenStudy (skullpatrol):

"each" means "for every single one"

OpenStudy (skullpatrol):

They want time per lap. $$\Huge \frac{time}{lap}$$

OpenStudy (skullpatrol):

As you can easily see the problem would be unrealistic if the number of laps equaled zero.

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