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Lesson: Challenging Problem Solving - 18t01

Rates: The Rate Formula And Unit Conversion

[Page 18 of 37]

The following problem illustrates the use of the basic rate formula and the importance of unit conversions. Review the question and then proceed to the task below.


If a centrifuge spins at a rate of k rotations per second, how many minutes would it take for the centrifuge to make n rotations?

60kn

For each question that follows, select the correct answer and then click Continue.

Which of the following components of the rate formula does this question ask us to find?
  Rate Distance (productivity) Time

The question stem explicitly asks how many minutes the centrifuge takes to complete a certain number of rotations. We are therefore asked to solve for time in minute units.


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