Luyện tập chung (sau bài 22, 23)

Home Lớp 9 Toán lớp 9 - Sách Kết nối tri thức Luyện tập chung (sau bài 22, 23)Bài tập trung bình

{"common":{"save":0,"post_id":"8202","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9229","post_id":"8202","mon_id":"1159278","chapter_id":"1159331","question":"M\u1ed9t t\u1ed5 h\u1ecdc sinh g\u1ed3m 10 h\u1ecdc sinh có \u0111i\u1ec3m ki\u1ec3m tra gi\u1eefa h\u1ecdc kì 2 môn toán nh\u01b0 sau: 5; 6; 7; 5; 8; 8; 10; 9; 7; 8. Giá tr\u1ecb nào có t\u1ea7n s\u1ed1 l\u1edbn nh\u1ea5t?<\/p>","options":["A.<\/strong> 5","B.<\/strong> 8","C.<\/strong> 9","D.<\/strong> 10"],"correct":"2","level":"2","hint":"","answer":"Ch\u1ecdn B.<\/strong> 8<\/span><\/p>Giá tr\u1ecb 5 có t\u1ea7n s\u1ed1 là 2.<\/p>Giá tr\u1ecb 6 có t\u1ea7n s\u1ed1 là 1.<\/p>Giá tr\u1ecb 7 có t\u1ea7n s\u1ed1 là 2.<\/p>Giá tr\u1ecb 8 <\/span>có t\u1ea7n s\u1ed1 là 3.<\/p>Giá tr\u1ecb 9 có t\u1ea7n s\u1ed1 là 1.<\/p>Giá tr\u1ecb 10 có t\u1ea7n s\u1ed1 là 1.<\/p>V\u1eady giá tr\u1ecb 8 có t\u1ea7n s\u1ed1 l\u1edbn nh\u1ea5t.<\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"127","test":"0","date":"2024-12-22 09:45:02","option_type":"txt","len":0},{"id":"9231","post_id":"8202","mon_id":"1159278","chapter_id":"1159331","question":"\u0110i\u1ec7n n\u0103ng tiêu th\u1ee5 c\u1ee7a 30 h\u1ed9 \u1edf m\u1ed9t khu dân c\u01b0 trong m\u1ed9t tháng nh\u01b0 sau (\u0111\u01a1n v\u1ecb là kW):<\/p><svg height=\"180\" width=\"310\"> 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<text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_64\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"164.86363\" xml:space=\"preserve\" y=\"135\">33<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_65\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"214.86363\" xml:space=\"preserve\" y=\"135\">39<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_66\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"264.86363\" xml:space=\"preserve\" y=\"135\">41<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_67\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"14.86363\" xml:space=\"preserve\" y=\"170\">32<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_68\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"64.86363\" xml:space=\"preserve\" y=\"170\">45<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_69\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"114.86363\" xml:space=\"preserve\" y=\"170\">40<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_70\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"164.86363\" xml:space=\"preserve\" y=\"170\">55<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_71\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"214.86363\" xml:space=\"preserve\" y=\"170\">50<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_72\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"264.86363\" xml:space=\"preserve\" y=\"170\">59<\/text> <\/g> <\/svg><\/span><\/p>Có bao nhiêu giá tr\u1ecb l\u1edbn h\u01a1n 64?<\/p>","options":["A.<\/strong> 4","B.<\/strong> 5","C.<\/strong> 3","D.<\/strong> 2"],"correct":"3","level":"2","hint":"","answer":"Ch\u1ecdn C.<\/strong> 3<\/span><\/p>Có 3 giá tr\u1ecb l\u1edbn h\u01a1n 64.<\/p><svg height=\"180\" width=\"310\"> <g><title><\/title><rect fill=\"#fff\" height=\"182\" id=\"canvas_background\" width=\"312\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_5\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> 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height=\"80\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"117.28723\" x=\"3.64555\" y=\"2.43181\"><\/rect> <rect fill=\"#aad4ff\" height=\"80\" id=\"svg_2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"35.18617\" x=\"120.93278\" y=\"2.43181\"><\/rect> <rect fill=\"#aad4ff\" height=\"80\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"35.18617\" x=\"156.11895\" y=\"2.43181\"><\/rect> <rect fill=\"#aad4ff\" height=\"80\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"35.18617\" x=\"191.30512\" y=\"2.43181\"><\/rect> <rect fill=\"#aad4ff\" height=\"80\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"35.18617\" x=\"226.49129\" y=\"2.43181\"><\/rect> <rect fill=\"#aad4ff\" height=\"80\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"35.18617\" x=\"261.67746\" y=\"2.43181\"><\/rect> <\/g> <line fill=\"none\" id=\"svg_8\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"2.86363\" x2=\"296.08171\" y1=\"42\" y2=\"42\"><\/line> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"7.86363\" xml:space=\"preserve\" y=\"28.43181\">Th\u1eddi gian (giây)<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"8.86363\" xml:space=\"preserve\" y=\"69.43181\">T\u1ea7n s\u1ed1<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"163.86363\" xml:space=\"preserve\" y=\"28.43181\">8,3<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"208.86363\" xml:space=\"preserve\" y=\"28.43181\">8,4<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"253.86363\" xml:space=\"preserve\" y=\"28.43181\">8,5<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"299.86362\" xml:space=\"preserve\" y=\"28.43181\">8,7<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"342.86362\" xml:space=\"preserve\" y=\"28.43181\">8,8<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"170.86363\" xml:space=\"preserve\" y=\"69.43181\">2<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"216.86363\" xml:space=\"preserve\" y=\"69.43181\">3<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_18\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"259.86363\" xml:space=\"preserve\" y=\"69.43181\">9<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_19\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"304.86362\" xml:space=\"preserve\" y=\"69.43181\">5<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_20\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7819148977478534,0,0,1,0.6245156776047023,0) \" x=\"350.86362\" xml:space=\"preserve\" y=\"69.43181\">1<\/text> <\/g> <\/g> <\/svg><\/span><\/p>N\u1ebfu t\u1ea5t c\u1ea3 cùng xu\u1ea5t phát thì có bao nhiêu h\u1ecdc sinh ch\u1ea1y v\u1ec1 \u0111ích \u0111\u1ea7u tiên cùng lúc?<\/p>","options":["A.<\/strong> 0","B.<\/strong> 2","C.<\/strong> 3","D.<\/strong> 1"],"correct":"2","level":"2","hint":"","answer":"Ch\u1ecdn B.<\/strong> 2<\/span><\/p>N\u1ebfu t\u1ea5t c\u1ea3 cùng xu\u1ea5t phát thì có 2 h\u1ecdc sinh ch\u1ea1y v\u1ec1 \u0111ích \u0111\u1ea7u tiên cùng lúc v\u1edbi th\u1eddi gian là 8,3 giây.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-12-22 10:04:33","option_type":"txt","len":0}]}