Question

Clara estimates that the length of a hiking trail is 5.75 km. She later learns that its actual length is 6.25 km. What is the percent error in Clara's estimate, to the nearest tenth of a percent?

Answer 1

percent error : (approximate value - exact value) / exact value.....x 100

percent error : (5.75 - 6.25) / 6.25......ignore any negative signs
0.5 / 6.25 = 0.08.....x 100 = 8% error <==