1) 66x+ 17y=3967
25x+y= 1200
Answer: x=48 y=47.
(2) 18x+23y=2303
74x-y= 1998
Answer: x=27 y=79
(3) 44x+90y=7796
44x+y=3476
Answer: x=79 y=48
⑷76x-66y = 4082
30x-y=2940
Answer: x=98 y=5 1.
(5) 67x+54y=8546
7 1x-y=5680
Answer: x=80 y=59
(6) 42x-95y=- 14 10
2 1x-y= 1575
Answer: x=75 y=48
(7) 47x-40y=853
34x-y=2006
Answer: x=59 y=48
(8) 19x-32y=- 1786
75x+y=4950
Answer: x=66 y=95
(9) 97x+24y=7202
58x-y=2900
Answer: x=50 y=98
( 10) 42x+85y=6362
63x-y= 1638
Answer: x=26 y=62
( 1 1)85x-92y =-25 18
27x-y=486
Answer: x= 18 y=44.
( 12) 79x+40y=24 19
56x-y= 1 176
Answer: x=2 1 y= 19.
( 13) 80x-87y=2 156
22x-y=880
Answer: x=40 y= 12.
( 14) 32x+62y=5 134
57x+y=2850
Answer: x=50 y=57
( 15) 83x-49y=82
59x+y=2 183
Answer: x=37 y=6 1.
( 16) 9 1x+70y=5845
95x-y=4275
Answer: x=45 y=25.
( 17) 29x+44y=528 1
88x-y=3608
Answer: x=4 1 y=93.
( 18) 25x-95y=-4355
40x-y=2000
Answer: x=50 y=59
( 19) 54x+68y=3284
78x+y= 1404
Answer: x= 18 y=34.
(20) 70x+ 13y=3520
52x+y=2 132
Answer: x=4 1 y=50.
(2 1) 48x-54y=-3 186
24x+y= 1080
Answer: x=45 y=99
(22) 36x+77y=76 19
47x-y=799
Answer: x= 17 y=9 1.
(23) 13x-42y=-27 17
3 1x-y= 1333
Answer: x=43 y=78
(24) 28x+28y=3332
52x-y=4628
Answer: x=89 y=30
(25) 62x-98y=-2564
46x-y=2024
Answer: x=44 y=54.
(26) 79x-76y=-4388
26x-y=832
Answer: x=32 y=9 1.
(27) 63x-40y=-82 1
42x-y=546
Answer: x= 13 y=4 1.
(28) 69x-96y=- 1209
42x+y=3822
Answer: x=9 1 y=78.
(29) 85x+67y=7338
1 1x+y=308
Answer: x=28 y=74
(30) 78x+74y= 12928
14x+y= 12 18
Answer: x=87 y=83.
(3 1) 39x+42y=533 1
59x-y=584 1
Answer: x=99 y=35
(32)29x+ 18y = 19 16
58x+y=2320
Answer: x=40 y=42
(33) 40x+3 1y=6043
45x-y=3555
Answer: x=79 y=93
(34) 47x+50y=8598
45x+y=3780
Answer: x=84 y=93
(35) 45x-30y=- 1455
29x-y=725
Answer: x=25 y=86
(36) 1 1x-43y =- 136 1
47x+y=799
Answer: x= 17 y=36.
(37) 33x+59y=3254
94x+y= 1034
Answer: x= 1 1 y=49.
(38) 89x-74y=-2735
68x+y= 1020
Answer: x= 15 y=55.
(39) 94x+7 1y=75 17
78x+y=3822
Answer: x=49 y=4 1.
(40) 28x-62y=-4934
46x+y=552
Answer: x= 12 y=85.
(4 1) 75x+43y=8472
17x-y= 1394
Answer: x=82 y=54.
4 1x-38y =- 1 180
29x+y= 1450
Answer: x=50 y=85
(43) 22x-59y=824
63x+y=4725
Answer: x=75 y= 14.
(44) 95x-56y=-40 1
90x+y= 1530
Answer: x= 17 y=36.
(45) 93x-52y=-852
29x+y=464
Answer: x= 16 y=45.
(46) 93x+ 12y=8823
54x+y=49 14
Answer: x=9 1 y=30.
(47) 2 1x-63y=84
20x+y= 1880
Answer: x=94 y=30
(48) 48x+93y=9756
38x-y=950
Answer: x=25 y=92
(49) 99x-67y=40 1 1
75x-y=5475
Answer: x=73 y=48
(50) 83x+64y=929 1
90x-y=3690
Answer: x=4 1 y=92.
(5 1) 17x+62y = 32 16
75x-y=7350
Answer: x=98 y=25.
(52) 77x+67y=2739
14x-y=364
Answer: x=26 y= 1 1.
(53) 20x-68y=-4596
14x-y=924
Answer: x=66 y=87
(54) 23x+87y=4 1 10
83x-y=5727
Answer: x=69 y=29.
(55) 22x-38y=804
86x+y=6708
Answer: x=78 y=24.
(56) 20x-45y=-3520
56x+y=728
Answer: x= 13 y=84.
(57) 46x+37y=7085
6 1x-y=4636
Answer: x=76 y=97.
(58) 17x+6 1y=4088
7 1x+y=5609
Answer: x=79 y=45
(59)5 1x-6 1y =- 1907
89x-y=23 14
Answer: x=26 y=53
69x-98y=-2404
2 1x+y= 1386
Answer: x=66 y=7 1.
(6 1) 15x-4 1y = 754
74x-y=6956
Answer: x=94 y= 16.
(62) 78x-55y=656
89x+y=55 18
Answer: x=62 y=76
(63) 29x+2 1y= 1633
3 1x-y=7 13
Answer: x=23 y=46
(64) 58x-28y=2724
35x+y=3080
Answer: x=88 y=85.
(65) 28x-63y=-2254
88x-y=2024
Answer: x=23 y=46
(66) 43x+50y=7064
85x+y=8330
Answer: x=98 y=57.
(67) 58x-77y= 1 170
38x-y=2280
Answer: x=60 y=30.
(68) 92x+83y= 1 1586
43x+y=30 10
Answer: x=70 y=62
(69) 99x+82y=6055
52x-y= 17 16
Answer: x=33 y=34
(70) 15x+26y= 1729
94x+y=8554
Answer: x=9 1 y= 14.
(7 1) 64x+32y=3552
56x-y=2296
Answer: x=4 1 y=29.
(72) 94x+66y= 10524
84x-y=78 12
Answer: x=93 y=27
(73) 65x-79y=-58 15
89x+y=23 14
Answer: x=26 y=95
(74) 96x+54y=62 16
63x-y= 1953
Answer: x=3 1 y=60.
(75) 60x-44y=-352
33x-y= 1452
Answer: x=44 y=68
(76) 79x-45y=5 10
14x-y=840
Answer: x=60 y=94
(77) 29x-35y=-2 18
59x-y=4897
Answer: x=83 y=75
(78) 33x-24y= 1905
30x+y=2670
Answer: x=89 y=43
(79)6 1x+94y = 1 1800
93x+y=5952
Answer: x=64 y=84.
(80) 6 1x+90y=500 1
48x+y=2448
Answer: x=5 1 y=2 1.
(8 1) 93x- 19y=2
86x-y= 1548
Answer: x= 18 y=88.
(82) 19x-96y=-59 10
30x-y=2340
Answer: x=78 y=77.
(83) 80x+74y=8088
96x-y=8640
Answer: x=90 y= 12.
(84) 53x-94y= 1946
45x+y=26 10
Answer: x=58 y= 12.
(85)93x+ 12y = 9 1 17
28x-y=2492
Answer: x=89 y=70
(86) 66x-7 1y=- 1673
99x-y=782 1
Answer: x=79 y=97
(87) 43x-52y=- 1742
76x+y= 1976
Answer: x=26 y=55
(88) 70x+35y=8295
40x+y=2920
Answer: x=73 y=9 1.
(89) 43x+82y=4757
1 1x+y=23 1
Answer: x=2 1 y=47.
(90) 12x- 19y=236
95x-y=7885
Answer: x=83 y=40
(9 1)5 1x+99y = 803 1
7 1x-y=29 1 1
Answer: x=4 1 y=60.
(92) 37x+74y=4403
69x-y=6003
Answer: x=87 y= 16.
(93) 46x+34y=4820
7 1x-y=5 183
Answer: x=73 y=43
(94) 47x+98y=586 1
55x-y=4565
Answer: x=83 y=20
(95) 30x- 17y=239
28x+y= 1064
Answer: x=38 y=53
(96)55x- 12y = 4 1 12
79x-y=7268
Answer: x=92 y=79
(97) 27x-24y=-450
67x-y=3886
Answer: x=58 y=84.
(98) 97x+23y=8 1 19
14x+y=966
Answer: x=69 y=62
(99) 84x+53y= 1 1275
70x+y=6790
Answer: x=97 y=59.
( 100) 5 1x-97y=297
19x-y= 1520
Answer: x=80 y=39
If you give me the answer, you won't find me. Ok, remember to ask me about my mobile phone. It's score calculation, depending on the topic. But thank you. If you change a little, I will choose you. Two boats left from both sides of the river at the same time. Their speed is fixed. They met for the first time at a distance of 700 meters from a river bank, then moved on and returned immediately after reaching another river bank. The second time they met 400 meters away from the other side and asked about the river. (The time for the ship to turn around after landing is not counted.
Let the river width be x, and the two ships are ship A and ship B respectively.
Available:
Suppose A opens 700 for the first time, then B opens X-700 at the same time.
So the driving distance of the second A is X-700+400=X-300.
The driving distance of B is 700+X-400=X+300.
Let the speed of A be A and the speed of B be B, and you can get
700/a==(X-700)/b
(X-300)/a=(X+300)/b
The solution is X= 1700.
That is, the river width is1700m.
Or:
Because the speed is constant, the sum of the distances traveled by the two ships when they first met is 1 times the width of the river. When they met for the second time, the sum of the distances traveled by the two ships was three times the width of the river. When the boat from the shore first met, it traveled 700 meters. So when the ship from one shore met for the second time, it traveled 3×700=2 100 meters, so it was a river.
X+400=2 100
Solution: X= 1700
A: River width 1700 meters.
Is this ok? I have taken out all my study materials.
I'll give you some exercises. See if you can work it out. I like you.
What is the value of k? Does the fractional equation 6/x-1= x+k/x (x-1)-3/x have a solution?
2. If the equation 1/x- 1=2/x-a has a positive integer solution, find the value of a. ..
3. The distance between Party A and Party B is 48km, and the time for the ship to travel from Party A to Party B is equal to half the time for the ship to travel in the opposite direction. Given the current speed of 4 km/h, find the ship speed in still water.
4.{x^2-y^2/xy}^2÷(x=y)*{x/x-y}^3
5.3 inches x/x-2 inches (x+2-5 inches x-2 inches)
1. Regarding the fractional equation of X,1(x-2)+k/(x+2) = 4/(x 2-4) has an augmented root, and x=-2, so find k.
2. Equation x+ 1/x=c+ 1/c The solution of X is x 1=c, x2= 1/c, if the solution of x-3/x=c-3/c is X1.