Answer: 14.29%
Step-by-step explanation: To calculate the percent error for Eve's estimate, we'll use the following formula:
Percent Error
=
∣
Experimental Value
−
Accepted Value
Accepted Value
∣
×
100
%
Percent Error=
∣
∣
Accepted Value
Experimental Value−Accepted Value
∣
∣
×100%
In this case, Eve's estimated time is the accepted value, and the actual time it took is the experimental value.
Eve's estimated time = 3 hours and 30 minutes = 3.5 hours
Actual time = 4 hours
Using the formula:
Percent Error
=
∣
4
−
3.5
3.5
∣
×
100
%
Percent Error=
∣
∣
3.5
4−3.5
∣
∣
×100%
=
∣
0.5
3.5
∣
×
100
%
=
∣
∣
3.5
0.5
∣
∣
×100%
=
∣
0.1429
∣
×
100
%
=∣0.1429∣×100%
=
14.29
%
=14.29%
