1. There was 20% error.
2. There was 5.33% error.
Step-by-step explanation:
1. Jerri estimated that 30 people would attend the dinner event, but only 25 people attended.
Exact value = 25
Approx value = 30
Percent error = [tex]\frac{|approx-exact|}{exact}*100[/tex]
Percent error = [tex]\frac{|30-25|}{25}*100 = \frac{|5|}{25}*100[/tex]
Percent error = [tex]\frac{500}{25} = 20\%[/tex]
There was 20% error.
2. Gene estimated the length of the fence to be 150 feet, but the actual measurement was 142.
Exact value = 142 feet
Approx value = 150 feet
Percent error = [tex]\frac{|150-142|}{150}*100 = \frac{|8|}{150}*100[/tex]
Percent error = [tex]\frac{800}{150} = 5.33\%[/tex]
There was 5.33% error.
Keywords: Error, percentage
Learn more about percentages at:
- brainly.com/question/10435816
- brainly.com/question/10435836
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