PCL5 K=2.25
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/22 01:35:07
X÷0.5-2.25=0.752x-2.25=0.752x=3x=1.5经检验x=1.5为方程解∴方程解为x=1.5望采纳
0.6*(4+0.25)=?你好象算错了吧
7%×+(35-×)×6%=2.25=0.07×+0.21-0.06×=2.25=0.13×=2.25+0.21=0.13×=2.46×=··············自己算了啊
解7.5×2.25=1.75×X(15/2)×(9/4)=X(7/4)135/8=X(7/4)X=(135/8)/(7/4)=(135/8)×(4/7)=(135×4)/(8×7)=135/14够详细
2.25/1.75=(1/4)/x9/7=x/4x=36/7
(1+x)^2=2.251+x=1.5或1+x=-1.5x1=0.5或x2=-2.5
内项之积等于外项之积1.5x=4.5x=3
2.25小时=2小时15分;故答案为:2,15.
(1.5)平方=2.25,2.25的平方根是+1.5or-1.5老了不死:
18.36-2.25+1.64-4.75=18.36+1.64-(2.25+4.75)=20-7=135.36-2.78-2.36=5.36-2.36-2.78=3-2.78=0.22
2.5%X+20*2.25%-2.25%X=0.4850.25%X+20*2.25%=0.4850.25%X=0.485-20*2.25%0.25%X=0.485-0.450.25%X=0.035X=
1.5x=2.251.5x÷1.5=2.25÷1.5x=2.25÷1.5x=1.5
2.25×3+2.25x=96.75+2.25x=92.25x=9-6.752.25x=2.25x=1希望能帮到你哦!
-2.25+[4*(-16分之3)-(8分之7-0.857)]==-2.25+(-4分之3)-0.018=-(2.25+0.75)-0.018=-3-0.018=-3.018
x/2+3x/3=2.25x/2+x=2.253x/2=2.25x=1.5
2.25-(7/4+13/4)-(1.75-8.73+23/4)=2.25-5-(7.5-8.73)=-2.75+1.23=-1.52
2.25×0.16+264×0.0225+5.2×2.25+0.225×20=2.25×0.16+2.64×2.25+5.2×2.25+2.25×2=2.25×(0.16+2.64+5.2+2)=2.
错了吧题目