Question

Josiah measured a line to be 18.4 inches. If the actual length of the line is 19.2 inches, then what was the percent of the measurement? Choose the nearest tenth of a percent.

1) 90%
2) 95%
3) 97%
4) 99%

Answer 1

To find the percent of the measurement, you need to calculate the percent error. In this case, the percent error is 4.17%, rounded to 4.2%. Therefore, the correct answer is 1) 90%.

Step-by-step explanation:

To calculate the percent of the measurement, we need to find the percent error.

Percent error is calculated by taking the difference between the measured value and the actual value, dividing by the actual value, and then multiplying by 100.

For this problem, the measured value is 18.4 inches and the actual value is 19.2 inches. So the percent error is (($19.2 - 18.4) / 19.2) * 100 = 4.17%.

Since we need to choose the nearest tenth of a percent, the answer is 4.2%. Therefore, the correct option is 1) 90%.