The number of pigs raised in the mountain farm is 30 more than five times that of cattle, and the number of pigs raised in the farm is 470. How many cows are raised?
山野养殖场养猪的头数比牛的5倍多30头，养殖场养猪470头，养牛多少头？
<gadget id="calculator">470 - 30</gadget>
<output>440</output>

<gadget id="calculator">440 / 5</gadget>
<output>88</output>

<result>88</result>