Answer:
1. Angles: <F=<J, <H=<H, <G=<K
Sides: FG/JK, GH/KH, FH/JH
2. 1/4 3. 5/2 4. X=12 5. 122.5 units 6. x=8; y=35 7. X=3 8. x=25 9. x=12 10. x=15 11. X=14 12. x=13
Step-by-step explanation:
2. 4/8 =1/4
3. 10/4=5/2
4. 5x=60(x=12)
5. 7(35)/2: 245/2= 122.5 units
6. x/28= 6/21: 21x=168: x=8
7. 49/14= 9(x+1)/(x+5): 49(x+5)=9(x+1)+14: 49x+245=126x+14: 245-14=126x-49x: 231=77x: x=3
8. 52/91=x+3/2x1: 52(2x-1)= 91(x+3): 104x-52=91x+273: 13x=325: x=25
9. 5x-3/3x+2= 60/40: 60(3x+2)= 40(5x-3): 200x-120=180x+120: 200=180x+120: 20x=240: x=12
10. 168x-280=160x-60: 8x-120: x=15
11. 12/x+1= 32/3x-2: 12(3x-2)= 32(x+1): 36x-24=32x+32: 4x=56: x=14
12. x+4/2x-7= 51/57: 57(x+4)= 51(2x-7): 57x +228=102x-357: -45x = -585: x=13
