Need help !!! On #8,9,10,11,12
2 answers:
Answer:
Step-by-step explanation:
8) AB + BC = AC
AC = 24
AB + BC = 24
x + 3x = 24
4x = 24
x = 24/4
x = 6
AB = x = 6
9) BC = 15
3x = 15
x = 15/3
x = 5
BD = BC + CD
= 3x + 4x - 13
= 7x - 13 = 7*5 -13
= 35 - 13
BD = 22
10) 80
11) 45
12) 86
8. ac=24, so this is 3x+x=4x
24=4x
x=6
AB=6
9. bc=15 this isx 3x
15=3x
x=5
BD= 3x+4x-13=22
10. 80
11. 45
12. I can not see, because image is not clear
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