It took Jackie two hours to mow the lawn period two weeks later, it took her 1 1/2 hours to mow the lawn. What can be said about the amount of power used by Jackie the second time she mowed the lawn.

Question

Mathematics

Joanna Roy

23 November, 20:59

It took Jackie two hours to mow the lawn period two weeks later, it took her 1 1/2 hours to mow the lawn. What can be said about the amount of power used by Jackie the second time she mowed the lawn.

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Answers (1)

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Aniyah Nielsen · Answer 1

Answer: We could say that Jackie's time decreased by 25%.

The first time she mowed the lawn it took her 2 hours. The second time she mowed the lawn it took her 1.5 hours. That is a difference of 0.5 hours.

If we write a fraction of the difference over the original amount, we get 0.5/2. This can be simplified to 25%.

Her time decreased by 25%.