八除以三分之二X=五分之四
2/3x=8÷4/5
2/3x=10
x=10x3/2
x=15改下，应该是2/3x=8÷4/52/3x=10x=10除以3/2x=15
猜你喜欢
- 1如图，已知DM平分∠ADC，BM平分∠ABC，且∠A=27°，∠M=33°，求∠C的度数．
- 2如图，在△ABC中，PM、QN分别是AB、AC的垂直平分线，∠BAC=110°，那么∠PAQ等于_．
- 3设α使第三象限角,tan(π-α)=-5/12,则cos(3π/2-α)=
- 4There are three hundreds and sixty‐five days in a year.改错 are,hundreds,and,in 以上哪个有错
- 5描写环境安静的句子加赏析,围绕“夜是那么的静”
- 6When I was 17,I read a quote that went something like:"If you live each day as if it was your
- 7积分[secx(tanx-secx)+5^* e^x]dx
- 8化学有机物的知识总结
- 9含有音标/a:/的英语单词
- 10每个亚铁离子带多少个电子?