问题
解答题
4.9减去2.9与0.5的积比一个数的5倍少1.65,求某数.
答案
[(4.9-2.9)×0.5+1.65]÷5,
=[2×0.5+1.65]÷5,
=[1+1.65]÷5,
=2.65÷5,
=0.53;
答:这个数是0.53.
4.9减去2.9与0.5的积比一个数的5倍少1.65,求某数.
[(4.9-2.9)×0.5+1.65]÷5,
=[2×0.5+1.65]÷5,
=[1+1.65]÷5,
=2.65÷5,
=0.53;
答:这个数是0.53.