The school bought 4 basketballs and 5 footballs for the first time, and they shared 440 yuan; the second time they bought the same 5 basketballs and 4 footballs, they shared 460 yuan. How much is a basketball and a football?
学校第一次买了4个篮球和5个足球，共用去440元；第二次买了同样的5个篮球和4个足球，共用去460元．一个篮球和一个足球各多少元？
<gadget id="calculator">440 + 460</gadget>
<output>900</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">900 / 9</gadget>
<output>100</output>

<result>100</result>