Cars A and B travel towards each other from places A and B respectively. After 4 hours, the two cars meet, and after meeting, car A travels for another 5 hours to reach place B. It is known that car B travels 80 kilometers per hour, how many kilometers is the distance between A and B?
甲、乙两车分别从A、B两地相向而行，4小时后两车相遇，相遇后甲车又行驶了5小时到达乙地．已知乙车每小时行80千米，A、B两地相距多少千米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">80 * (4/5) * 9</gadget>
<output>576</output>

<result>576</result>