Question

What is the range of values for the measurement 500 (plus-minus sign) 4%

Answer 1

`\bf 500\pm 4\%\\\\ -------------------------------\\\\ \textit{how much is 4\% of 500? }\cfrac{4}{100}\cdot 500\implies 20 \\\\\\ 500\pm 4\%\implies 500\pm 20\implies 500-20...... 500+20\\\\\\ 480...... 520`