小丽和小云在计算一道除法题,小丽算得3.6除以一个数的正确结果是a,小云却将被除数3.6看成了6.3,结果算得的商比a大3.问正确结果是多少?
小丽和小云在计算一道除法题,小丽算得3.6除以一个数的正确结果是a,小云却将被除数3.6看成了6.3,结果算得的商比a大3.问正确结果是多少?
数学人气:132 ℃时间:2019-08-18 23:13:23
优质解答
正确结果是4,即a=4求过程3.6/x=a6.3/x=a+3解方程得x=0.9,a=4
我来回答
类似推荐
猜你喜欢
- 1拼音拼读
- 2()the teacher told tom to do the homework___carefully next time.A.moreB.mostC.muchD.many
- 3一辆汽车在与铁路平行的公路上行驶,追赶一列长320m的列车.已知汽车的速度是54km/h,火车的速度是36km/h,问汽车从列车尾部到全部超越列车需多少时间?
- 4若函数y=a(x-h)2+k的图象经过原点,最大值为8,且形状与抛物线y=-2x2-2x+3相同,则此函数关系式_.
- 5100毫升0.3摩尔每升的Na2SO4和50毫升0.2摩尔升的硫酸铝溶液混合后,溶液中的硫酸跟离子的物质的量浓度是?
- 6日字头中间一个处下面一个口是什么字
- 7Would you like some bread?A.No,I don't B.Yes,please C.sorry
- 8Because he didn't finish the work on time and was fired by the company ,he was very ( )about it.
- 9把英语句子补充完整,因为下大雨,会议不得不推迟The meeting( )bacause of the heavy rain谢谢了,
- 10Cu+2AgCl=CuCl2 +2Ag Ca(OH)2+K2CO3=CaCO3↓+2KOH Mg(OH)2+Na2CO3=MgCO3↓+2NaOH正确的?