一间教室长九米宽四米要为这间教室铺地板地板长90厘米宽九厘米宽十厘米需要多 一间教室长9米宽8米要给这间教室地面铺上面积是5平方分米的地...
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9*4.5/(0.6*0.6)=112.5
\u6240\u4ee5\u5e94\u8be5\u8fdb\u4e00\u4e2a.
\u9700\u89811440\u5757\u5730\u7816\u3002\u6559\u5ba4\u957f9\u7c73\uff0c\u5bbd8\u7c73\uff0c\u9762\u79ef\u4e3a8\u00d79=72\u5e73\u65b9\u7c73=7200\u5e73\u65b9\u5206\u7c73\u3002\u4e00\u5757\u7816\u7684\u9762\u79ef\u662f5\u5e73\u65b9\u5206\u7c73\uff0c\u6240\u4ee5\u9700\u8981\u7816\u7684\u5757\u6570\u4e3a7200\u00f75=1440\u5757\u3002
设需要X块X:600=900:2500
2500X=600×900
X=216
祝你开心
绛旓細9*4.5/(0.6*0.6)=112.5 鎵浠ュ簲璇ヨ繘涓涓.
绛旓細闇瑕1440鍧楀湴鐮栥鏁欏闀9绫锛屽8绫筹紝闈㈢Н涓8脳9=72骞虫柟绫=7200骞虫柟鍒嗙背銆備竴鍧楃爾鐨勯潰绉槸5骞虫柟鍒嗙背锛屾墍浠ラ渶瑕佺爾鐨勫潡鏁颁负7200梅5=1440鍧椼
绛旓細涓闂存暀瀹ら暱9绫锛屽6绫筹紝閭d箞鏁欏闈㈢Н涓洪暱脳瀹=9X6=54骞虫柟绫=5400骞虫柟鍒嗙背锛岃竟闀3鍒嗙背姝f柟褰㈠湴鐮栭潰绉负3X3=9骞虫柟鍒嗙背锛屾暀瀹ら摵鍦扮爾鍧楁暟涓5400梅9=600鍧楋紝甯屾湜鑳藉瀵逛綘鏈夊府鍔┿
绛旓細鍦伴潰闈㈢Н鏄54骞虫柟绫筹紝闇瑕600鍧椼傛湰棰樿冩煡闀挎柟褰㈠拰姝f柟褰㈤潰绉殑璁$畻锛岃В棰樻柟娉曞涓嬶細1銆佹牴鎹暱鏂瑰舰闈㈢Н鍏紡锛屾眰鍑哄湴闈㈢殑闈㈢Н鏄9脳6=54锛堝钩鏂圭背锛夛紝1m²=100dm²锛54骞虫柟绫 =5400骞虫柟鍒嗙背銆2銆佹牴鎹鏂瑰舰闈㈢Н鍏紡锛屾眰鍑烘鏂瑰舰鍦扮爾鐨勯潰绉槸3脳3=9锛堝钩鏂瑰垎绫筹級锛屾渶鍚庣畻鍑洪渶瑕佹鏂瑰舰鍦扮爾 54...
绛旓細涓闂存暀瀹,闀9绫,瀹6绫,楂4绫,瑕佺矇鍒峰洓澹佸拰椤舵銆傛墸闄ら棬绐楀拰榛戞澘鐨勯潰绉24骞虫柟绫,姣忓钩鏂圭背鐢ㄦ秱鏂0銆1鍗冨厠銆傜矇鍒疯繖闂存暀瀹よ嚦灏戦渶瑕佹秱鏂欏灏戝崈鍏?鍦ㄤ竴鍙簳闈㈢洿寰勬槸60鍘樼背鐨勫渾鏌卞舰姘存《閲,鏈変竴娈靛崐寰勪负10鍘樼背鐨勫渾鏌变綋閽㈡潗娴告病鍦ㄨ涓,褰撻挗鏉愪粠姘存《閲屽彇鍑烘椂,妗堕噷鐨勬按闈笅闄嶄簡5鍘樼背銆傝繖娈甸挗鏉愭湁澶氶暱?涓涓簳闈㈢Н鏄31...
绛旓細棣栧厛璁$畻澧欓潰鐨勯潰绉 (8+6)脳2脳4=112 鍐嶈绠楅《鐨勯潰绉 6脳8=48 鏈鍚庢妸涓婁袱椤圭浉鍔狅紝鍐嶅噺鍘婚棬绐楅潰绉 112+48-25=135
绛旓細瀹芥槸6绫筹紝楂樻槸3绫筹紝鎵i櫎闂ㄧ獥鐨勯潰绉1150骞虫柟鍒嗙背闇瑕佽姳4鍏冩秱鏂欒垂锛岀矇鍒杩欓棿鏁欏闇瑕佽姳澶氬皯鍏冿紵瑙o細1150骞虫柟鍒嗙背=11.50骞虫柟绫 闇瑕绮夊埛鐨勬暀瀹ら潰绉=灞嬮《+渚ч潰绉-闂ㄧ獥鐨勯潰绉 =8x6+2x(3x6+8x3)-11.5 =48+84-11.5= 120.5骞虫柟绫 4x120.5=482鍏 绛旓細绮夊埛杩欓棿鏁欏闇瑕佽姳482鍏冦
绛旓細闇瑕佺矇鍒风殑闈㈢Н锛氾紙8脳6+6脳3+3脳8锛壝2-8脳6-26锛=锛48+18+24锛壝2-48-26锛=90脳2-74锛=180-74锛=106锛堝钩鏂圭背锛夛紱鍏遍渶娑傛枡锛106脳0.5=53锛堝崈鍏嬶級锛涚瓟锛杩欓棿鏁欏闇瑕娑傛枡53鍗冨厠锛
绛旓細锛1锛夛紙9脳6+6脳3+3脳9锛壝2-22-9脳6锛=锛54+18+27锛壝2-22-54锛=99脳2-76锛=198-76锛=122锛堝钩鏂圭背锛夛紱绛旓細闇瑕佺矇鍒风殑闈㈢Н涓122骞虫柟绫筹紟锛2锛122脳0.15=18.3锛堝崈鍏嬶級锛涚瓟锛氫竴鍏辫鐢18.3鍗冨厠娑傛枡锛
绛旓細瑙o細 棣栧厛璁$畻瑕佸埛娑傛枡澧欓潰鐨勯潰绉 S锛歋 = 8*6+2*(6*3.5+3.5*8) - 34= 112(骞虫柟绫筹級鐢变簬姣忓钩鏂绫抽渶瑕娑傛枡0.9鍗冨厠锛屽垯鍏遍渶娑傛枡涓 M = S*0.9 = 112*0.9 = 100.8锛堝崈鍏嬶級