原进价(元/个) 零售价(元/个) 成套售价(元/套)螺丝 a 1.0 2.0螺母 a - 0.3 0.6 2.0已知用50元购进螺丝的数量与用20元购进螺母的数量相同.(1)求表中a的值(2)若该店购进螺母数量是螺丝
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![原进价(元/个) 零售价(元/个) 成套售价(元/套)螺丝 a 1.0 2.0螺母 a - 0.3 0.6 2.0已知用50元购进螺丝的数量与用20元购进螺母的数量相同.(1)求表中a的值(2)若该店购进螺母数量是螺丝](/uploads/image/z/12690304-16-4.jpg?t=%E5%8E%9F%E8%BF%9B%E4%BB%B7%EF%BC%88%E5%85%83%2F%E4%B8%AA%EF%BC%89+%E9%9B%B6%E5%94%AE%E4%BB%B7%EF%BC%88%E5%85%83%2F%E4%B8%AA%EF%BC%89+%E6%88%90%E5%A5%97%E5%94%AE%E4%BB%B7%EF%BC%88%E5%85%83%2F%E5%A5%97%EF%BC%89%E8%9E%BA%E4%B8%9D+a+1.0+2.0%E8%9E%BA%E6%AF%8D+a+-+0.3+0.6+2.0%E5%B7%B2%E7%9F%A5%E7%94%A850%E5%85%83%E8%B4%AD%E8%BF%9B%E8%9E%BA%E4%B8%9D%E7%9A%84%E6%95%B0%E9%87%8F%E4%B8%8E%E7%94%A820%E5%85%83%E8%B4%AD%E8%BF%9B%E8%9E%BA%E6%AF%8D%E7%9A%84%E6%95%B0%E9%87%8F%E7%9B%B8%E5%90%8C.%EF%BC%881%EF%BC%89%E6%B1%82%E8%A1%A8%E4%B8%ADa%E7%9A%84%E5%80%BC%EF%BC%882%EF%BC%89%E8%8B%A5%E8%AF%A5%E5%BA%97%E8%B4%AD%E8%BF%9B%E8%9E%BA%E6%AF%8D%E6%95%B0%E9%87%8F%E6%98%AF%E8%9E%BA%E4%B8%9D)
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