Team A lays an average of 36 kilometers of pipelines per day, and team B lays an average of 48 kilometers of pipelines per day. The construction is carried out at the same time. If the pipeline is completed in one week, how many kilometers is the length of the pipeline?
甲队平均每天铺设36千米管道，乙队平均每天铺设48千米管道，同时施工，一个星期铺完，这条管道长多少千米？
<gadget id="calculator">36 + 48</gadget>
<output>84</output>

<gadget id="calculator">84 * 7</gadget>
<output>588</output>

<result>588</result>