0.4x等于0.28解方程怎么写o 24分之x等于0.4:4解方程？
28\uff0fx=0.4\uff0f0.12\u89e3\u65b9\u7a0b28\uff0fx=0.4\uff0f0.12
x=28x0.12\u00f70.4
x=8.4
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~\u624b\u673a\u63d0\u95ee\u8005\u5728\u5ba2\u6237\u7aef\u53f3\u4e0a\u89d2\u8bc4\u4ef7\u70b9\u3010\u6ee1\u610f\u3011\u5373\u53ef\u3002
~\u4f60\u7684\u91c7\u7eb3\u662f\u6211\u524d\u8fdb\u7684\u52a8\u529b~~
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O(\u2229_\u2229)O\uff0c\u8bb0\u5f97\u597d\u8bc4\u548c\u91c7\u7eb3\uff0c\u4e92\u76f8\u5e2e\u52a9
\u795d\u5b66\u4e60\u8fdb\u6b65\uff01
24\u5206\u4e4bx\u7b49\u4e8e0.4:4
4x=9.6
x=2.4
x=0.28/0.4=0.7
x=0.28/0.4=0.7
0.4x=0.28
x=0.28÷0.4
x=0.7
0.4x=0.28
x=0.7
绛旓細x=0.28/0.4=0.7
绛旓細鍥炵瓟锛氬笇鏈涘彲浠ュ府鍒颁綘,璋㈣阿
绛旓細0.4x=0.168 x=0.168梅0.4 x=0.42 甯屾湜甯埌浣 鏈涢噰绾 璋㈣阿 鍔犳补
绛旓細x(1-0.3)=0.28 0.7x=0.28 x=0.4
绛旓細鍒楁柟绋嬪紡璁＄畻0.3x+0.4x=28 瑙ｉ鎬濊矾:瑙ｆ柟绋杩囩▼闇瑕佽繘琛屽悓绫婚」鍚堝苟,瀵规湭鐭ユ暟椤瑰拰甯告暟椤瑰垎鍒繘琛屽悎骞,鏈鍚庡皢鏈煡鏁伴」绯绘暟鍖栦负1 瑙ｉ杩囩▼:0.3x+0.4x=28 x=28梅0.7 x=40
绛旓細0.4X=32鏂圭▼杩欐牱瑙ｏ細涓銆佹牴鎹瓑寮忕殑鎬ц川瑙ｆ柟绋銆0.4X=32 瑙ｏ細0.4X梅0.4=32梅0.4 鈥斺斾袱杈瑰悓鏃堕櫎浠0.4 X=80 浜屻佹牴鎹姞鍑忎箻闄ょ畻寮忎腑鍚勯儴鍒嗕箣闂寸殑鍏崇郴瑙ｆ柟绋嬨0.4X=32 X=32梅0.4 鈥斺斾竴涓洜鏁=绉峰彟涓涓洜鏁 X=80
绛旓細X=0.4*1.75/2.5=0.28
绛旓細鍖栫畝鐨 40x+28y=1000 28x+40y=904 鍗 10x+7y=250鈶 7x+10y=226鈶 10鈶-7鈶 100y-49y=510 51y=510 y=10 鎶妝=10浠ｅ叆鈶犲緱 x=18 鎵浠=18 y=10 绁濅綘瀛︿範杩涙锛屾洿涓婁竴灞傛ゼ锛 (*^__^*)涓嶆槑鐧界殑鍐嶉棶鍝燂紝璇峰強鏃堕噰绾筹紝澶氳阿 !
绛旓細x梅1.44=0.4 x=0.4X1.44 x=0.576 楠岃瘉锛氫竴鑸瑙ｆ柟绋涔嬪悗锛岄渶瑕佽繘琛岄獙璇併傞獙璇佸氨鏄皢瑙ｅ緱鐨勬湭鐭ユ暟鐨勫间唬鍏ュ師鏂圭▼锛岀湅鐪嬫柟绋嬩袱杈规槸鍚︾浉绛夈傚鏋滅浉绛夛紝閭ｄ箞鎵姹傚緱鐨勫煎氨鏄柟绋嬬殑瑙ｃ
绛旓細x梅0.4=0.82鎬庝箞瑙ｆ柟绋 瑙ｆ柟绋 x梅0.4=0.82 x=0.82*0.4 x=0.328
