当x的值为_时,5x+0.2的值为0.6;当x的值_时,5x+0.2的值大于0.6.

问题描述:

当x的值为___时,5x+0.2的值为0.6;当x的值___时,5x+0.2的值大于0.6.

(1)5x+0.2=0.65x+0.2-0.2=0.6-0.25x÷5=0.4÷5x=0.08(2)5x+0.2>0.65x+0.2-0.2>0.6-0.25x÷5>0.4÷5x>0.08.答:当x的值为0.08时,5x+0.2的值为0.6;当x的值大于0.08时,5x+0.2的值大于0.6.故答案为:0.08,...