3.5 yuan per kilogram of pears, 5 yuan per kilogram of apples. Xiao Ming brought 50 yuan, bought 2 kilograms of pears first, and bought apples with the remaining money, how many kilograms of apples can he buy?
每千克梨3.5元，每千克苹果5元．小明带了50元，先买了2千克梨，剩下的钱买苹果，还可以买多少千克苹果？
<gadget id="calculator">3.5 * 2</gadget>
<output>7</output>

<gadget id="calculator">50 - 7</gadget>
<output>43</output>

<gadget id="calculator">43 / 5</gadget>
<output>43/5 = around 8.6</output>

<result>43/5 = around 8.6</result>