A truck pulls asphalt to pave the road. The length of the truck is 5 meters, the width is 3.5 meters, the height of the cement inside is 80 cm, the width of the road to be paved is 5 meters, and the thickness is 4 cm. How long can this truck be paved with cement? ?
一辆卡车拉沥青铺路，卡车的长是5米，宽是3.5米，里面水泥的高度是80厘米，要铺的路宽度是5米，厚度是4厘米，这车水泥可以铺多长的路？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">5 * (1/25)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(4/5) / (1/5)</gadget>
<output>4</output>

<gadget id="calculator">5 * 3.5 * 4</gadget>
<output>70</output>

<result>70</result>