Question

Item 16 Explain why a change from 20 to 40 is a 100% increase, but a change from 40 to 20 is a 50% decrease. Increasing 20 to 40 is the same as increasing 20 by . So, it is a 100% increase. Decreasing 40 to 20

Answer 1

Answer:

Increasing 20 to 40 is the same as increasing 20 by 20 (or itself), so it is a 100% increase. Decreasing 40 to 20 is the same as decreasing 40 by 1/2 or by 20. So it is a 50% increase.

Step-by-step explanation:

Answer 2

To increase a number simply means to "add to" the number while to decrease a number simply means "to reduce" the number.

Increase/Decrease of numbers

To increase a number simply means to "add to" the number while to decrease a number simply means "to reduce" the number.

If we change from 20 to 40, we are adding another 20 hence this is a 100% increase. On the other hand, when we change from 40 to 20 we have decreased the number by half which corresponds to a 50% decrease.

Learn more about increase/decrease of numbers:https://brainly.com/question/2146601

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