甲数的40%等于乙数的50%,甲,乙两数之比是( ):( )
甲数的40%等于乙数的50%,甲,乙两数之比是(5 ):(4 )(1÷40%):(1÷50%)=5:4
绛旓細鐢叉暟鐨40%绛変簬涔欐暟鐨50%,鐢,涔欎袱鏁颁箣姣旀槸锛5 锛夛細锛4 锛夛紙1梅40%锛夛細锛1梅50%锛夛紳5锛4
绛旓細鐢叉暟鐨40%绛変簬涔欐暟鐨50%锛岀敳锛屼箼涓ゆ暟涔嬫瘮鏄紙5 锛夛細锛4 锛夛紙1梅40%锛夛細锛1梅50%锛夛紳5锛4
绛旓細鐢叉暟鐨40%绛変簬涔欐暟鐨50%锛岀敳锛屼箼涓ゆ暟涔嬫瘮鏄紙5 锛夛細锛4 锛夛紙1梅40%锛夛細锛1梅50%锛夛紳5锛4
绛旓細鐢叉暟鐨40%=120脳40%=48 涔欐暟=48梅50%=96
绛旓細鐢叉暟20%绛変簬涔欐暟鐨25%锛屽垯鐢叉暟鐨40%鏄箼鏁扮殑50%锛屾晠鐢叉暟鏄箼鏁扮殑鍗婂垎涔嬶紙1/40%)=2.5 甯屾湜瀵逛綘鏈夋墍甯姪锛佹弧鎰忚鍒繕浜嗛噰绾冲摝锛
绛旓細涔 120x40%梅50 =48梅50 =96 ~濡傛灉浣犺鍙垜鐨勫洖绛旓紝璇峰強鏃剁偣鍑汇愰噰绾充负婊℃剰鍥炵瓟銆戞寜閽畘~鎵嬫満鎻愰棶鑰呭湪瀹㈡埛绔彸涓婅璇勪环鐐广愭弧鎰忋戝嵆鍙倊浣犵殑閲囩撼鏄垜鍓嶈繘鐨勫姩鍔泘~~濡傝繕鏈夋柊鐨勯棶棰橈紝璇蜂笉瑕佽拷闂殑褰㈠紡鍙戦侊紝鍙﹀鍙戦棶棰樺苟鍚戞垜姹傚姪鎴栧湪杩介棶澶勫彂閫侀棶棰橀摼鎺ュ湴鍧锛岀瓟棰樹笉鏄擄紝鏁璋呰В~~O(鈭鈭)O锛...
绛旓細瑙o細鐢叉暟鐨鍊掓暟鏄2鍙堜簩鍒嗕箣涓 鎵浠ョ敳鏁版槸锛2/5锛岃涔欐暟鏄痻 2/5*50%=40%x 1/5=0.4x x=1/2
绛旓細鍋囪鐢蹭负x锛屼箼涓簓 0.3x=0.5y x=0.5y/0.3=1.666666666y 鐢叉瘮涔欏ぇ 鍋囧鐢叉槸100锛岀敳鐨30%灏辨槸30锛绛変簬涔欑殑50%锛30*2=60锛屼箼鏄60
绛旓細鐢遍鐩,鏈 2/5鐢=3/5涔 鏁 鐢=3/2涔 鍗 鐢:涔=3:2 鐢遍鐩,鏈 2/5鐢=3/5涔 鏁 鐢=3/2涔 鍗 鐢:涔=3:2
绛旓細濡傛灉鐢叉暟鐨40%绛変簬涔欐暟鐨60%,閭d箞鐢叉暟(澶т簬)涔欐暟銆傜敳鏁懊40%=涔欐暟脳60 鐢叉暟锛氫箼鏁=60:40=3:2