The perimeter of a rectangle is 35. The ratio of length to width is 4:3. What is the area of the rectangle?
一个长方形的周长是35长与宽的比是4：3，这个长方形的面积是多少平方厘米．
<gadget id="calculator">35 / 2</gadget>
<output>35/2 = around 17.5</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">(35/2) * (4/7)</gadget>
<output>10</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">(35/2) * (3/7)</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">10 * (15/2)</gadget>
<output>75</output>

<result>75</result>