6.6 flashcard alg a

Front

What is percent of change?

Back

Percent of change is a measure that describes how much a quantity has increased or decreased relative to its original value, expressed as a percentage.

Front

How do you calculate percent of change?

Back

Percent of change = ((New Value - Original Value) / Original Value) * 100.

Front

What is the percent of change from 15 meters to 36 meters?

Back

140% increase.

Front

What is the percent of change from 20 songs to 70 songs?

Back

250% increase.

Front

What is the percent of change from 90 people to 45 people?

Back

50% decrease.

Front

How do you identify if the percent of change is an increase or decrease?

Back

If the new value is greater than the original value, it is an increase. If the new value is less than the original value, it is a decrease.

Front

What is the percent of change when driving time decreases from 40 minutes to 32 minutes?

Back

20% decrease.

Front

What is percent error?

Back

Percent error is a measure of how inaccurate a measurement is, compared to the true value, expressed as a percentage.

Front

How do you calculate percent error?

Back

Percent error = (|Estimated Value - Actual Value| / Actual Value) * 100.

Front

What is the percent error when estimating 141 envelopes but the actual number is 150?

Back

6%.