The school bought basketballs for 85 yuan each, and bought 9 in total. If you use the money to buy 5 yuan a piece of skipping rope, how many can you buy?
学校买篮球，每个85元，一共买了9个，如果用这些钱买5元一根的跳绳，可以买多少根？
<gadget id="calculator">9 / 5</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">85 * (9/5)</gadget>
<output>153</output>

<result>153</result>