有两个数,较小数比较大数的30%还小4,较大数是较小数的4倍,则较小数等于什么?
有两个数,较小数比较大数的30%还小4,较大数是较小数的4倍,则较小数等于什么?
数学人气:931 ℃时间:2019-08-22 03:31:59
优质解答
设较小数为x,较大数为y,由题意可知x=0.3y-4和y=4x,解得x=20,y=80,所以较小数为20,较大数为80.
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