Question

Sofia measured a line to be 18.4 inches long. If the actual length of the line is 17.7 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?

Answer 1

EXPLANATION

The percentage of error is given by the following formula:

%Error = (Accepted value - experimental value)/Accepted value

We have that:

Accepted value = 17.7

Experimental value = 18.4

Substituting terms:

%Er