The "National Games" is going on in full swing. Xiaojun participated in the winter sunshine sports long-distance running exercise. He ran a total of 1600 meters in the first two days, according to our calculations. How many miles can he run in a week?
"全民运动会"正热火朝天的进行着．小军参加冬季阳光体育长跑锻炼，前两天共跑了1600米，照这们计算．他一个星期共可以跑多少千米？
<gadget id="calculator">1_600 / 2</gadget>
<output>800</output>

<gadget id="calculator">7 / 1_000</gadget>
<output>7/1_000 = around 0.007</output>

<gadget id="calculator">800 * (7/1_000)</gadget>
<output>28/5 = around 5.6</output>

<result>28/5 = around 5.6</result>