Предмет: Математика, автор: Аноним

Решите все по действиям, плиззз

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Автор ответа: LavrovaJ

Будем решать пропорциями
а) 1) x/7=14
x=14*7
x=98
Ответ:x=98

LavrovaJ: 2) 45/x=9
9x=45
x=5
Ответ:х=5
3)x/8=16
x=16*8
x=128
Ответ:х=128
4)55/х=11
11х=55
х=5
Ответ:х=5
б) 0,3725х+0,6248х-0,1= х-0,1
При х=5,7 значение выражения равно 5,7-0,1=5,6
в) 42х+19х-16=1448
61х=1464
х=24
Ответ:х=24

Аноним: блииин,спасибо

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RIYAZ 528000:12 66600:900 = 460 x 40 = 471 + 139 = 670 - 454 = 186000:62 = 82800: 600 = 373 + 313 = 909000: 300 = 56 x 80 =4480 498 - 366 = 664 - 240 = 7700 x 80 = 606 + 330 = 36 325000 : 650 = 52500: 350 = 507 + 468 = 762 - 348 = 83500:50 = 56800: 800 = 786 - 444 = 6650: 95 = 5200 x 60 = 180 x 70 = 273000:910 = 372 +318 = 81600 : 800 = 500 + 479= 870 - 506 = 333000:30 = 8600 x 30 = 650 - 448= 85 x 60 = 12000 : 80 = 248 +387 = 8820:42 = 876 + 3 = 35200:80= 762-58 = 59200: 800 = 42000:42 = 900 x 240 = 940 - 406 = 17 x 30 = 71400:420 = 88 +504 = 86100: 700 = 658 + 74 = 63000:90 = 557 - 223 = 2800 x 80 = 963 - 106 = 950 x 9 = 26800:670 = 949 + 36 = 108 + 170 = 37200:200 = 492000:82= 438 - 69 = 2880: 24 = 26 x 50 = 581 - 363 = 12000: 60 = 43 +49 = 495000:90 = 888000 : 740 = 67 x 80 = 720 x 60 = 607 - 392 = 78000 :400 = 520 + 115 = 218 + 295 = 93600: 240 = 60 x 250 = 252-53 = 662-219- 3520:8 = 272 + 76 = 22200: 740 = 82600:59 = 3800 x 40 = 873 - 126 = 90600: 600 = 9240:3= 105 + 175 = 2850:57 = 70 x 90 = 5200 x 30 = 583 - 89= 118000: 200 = 557 + 431 = 365 + 305 = 100000:10 = 45 x 80 = 154 - 31 = 991 - 778 = 41100:30 = 791 +81 = 86400:320 = 75400:580 = 530 x 3= 341 - 335 = 782000:20 = 896000:20 = 454 + 112 = 45900:51 = 3200 x 90 = 530 x 5 = 853 - 399 = 480000 : 500 = 224 + 194 = 194 + 757 = 114000 : 57 = 75 x 50 = 790 - 300 = 510 - 345 = 84000: 30 = 434 + 3 = 94900: 730 = 93000:930 = 880 x 2 = 501 - 443 = 845000:50 = 1080:9= 402 + 193= 315000:90= 830 x 80 = 6200 x 40 = 516 - 15 = 5940:9 = 337 + 277 = 224 + 752 = 27500:25 = 7 x 180 = 876-352 = 922- 913= 52500: 700 = 295 + 696 = 132000: 110 = 8200: 820 = 110 x 6 = 140 - - 50 = 60600: 600 = 20400:30 = 97 + 849 = 43200:480 = 84 x 30 = 340 x 50 = 980 - 247 = 804000: 400 = 683 + 24 = 131 + 307 = 39900:57 = 510 x 5 = 899 - 60 = 896 - 13= 91800: 900 = 64 + 284 = 686000: 98 = 854000:61 = 220 x 5 = 719 - 247 = 3840:8= 536000: 80 = 581 +53 = 4920: 82= 40 x 890 = 960 x 40 = 503 - 91 = 9740:2= 809 + 2 = 20 + 747 = 73000:73= 420 x 40 = 976 - 545 = 734 - 370 = 55800:90 = 713 +52 = 40700: 370 = 155000:310 = 7700 x 20 = 276 - 116= 95400:900 = 220000:500 = 57 + 10 = 90000 : 750 = 2600 x 20 = х 800 x 7= 991 - 289 = 540000:90 = 643 + 156 = 6+716 = 3770: 29 = 720 x 7 = 801 - 331 = 440 x 9= 222 + 174 = 656 - 591 = 231000:21 = 854000: 70 = 19 x 70 = 278 + 48 = 977 - 82 = 44000: 880 = 73600:400 = 000 x 960 = 128 +633 = 364-335 = 7590:3= 546000 : 60 = 3100 x 70 = 242 + 210 = 987 - 847 = 42000:3= 77000: 700 = 700 x 9= 473 + 19 = 657 - 304 = 986000:290 = 2100: 700 = 5 x 330 = 71 + 915 = 242 - 150 = 93000: 93 = 1850:5= 460 x 30 = 502 +42= 937 - 59 = 747000: 83 = 30600:20 = 67 x 80 = 729 +202= 789 - 105 = 76000:38 = 288000:90 = - X 38 30.
после равно должен быть ответ пж решите срочно даю 20б