A 3.4m long steel wire is bent into a rectangle. If the length of the rectangle is 9 decimeters, what is the width?
用一根长3.4米的钢丝弯折成一个长方形．如果长方形的长是9分米，则宽是多少分米？
<gadget id="calculator">3.4 * 10</gadget>
<output>34</output>

<gadget id="calculator">34 / 2</gadget>
<output>17</output>

<gadget id="calculator">17 - 9</gadget>
<output>8</output>

<result>8</result>