A vacuum cleaner is priced at 585 yuan after a 10% discount. How much is the original price of this vacuum cleaner?
一种吸尘器打九折后售价585元，这种吸尘器原价多少元．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">585 / (9/10)</gadget>
<output>650</output>

<result>650</result>