Cars A and B are traveling toward each other at the same time from two places 750 kilometers apart. Car A travels 70 kilometers per hour, and car B travels 80 kilometers per hour. How far is car A from the starting point of car B? ?
甲乙两车从相距750千米的两地同时相向而行，甲车每小时行70千米，乙车每小时行80千米，甲车在距乙车出发地多远的地方与乙车相遇？
<gadget id="calculator">70 + 80</gadget>
<output>150</output>

<gadget id="calculator">750 / 150</gadget>
<output>5</output>

<gadget id="calculator">5 * 80</gadget>
<output>400</output>

<result>400</result>