甲数是90,比乙数多10%
问题描述:
甲数是90,比乙数多10%
答
90-9=81甲数是90,比乙数多10%,乙数是多少(90-x)/x=10%(90-x)/x=1/10x=900-10x11x=900x=900/11
甲数是90,比乙数多10%
90-9=81甲数是90,比乙数多10%,乙数是多少(90-x)/x=10%(90-x)/x=1/10x=900-10x11x=900x=900/11