12a)
5x + 45 + 3x - 25 = 180
8x + 20 = 180
8x = 160
x = 20
12b)
2x - 5 = 2(20) - 5 = 40 - 5 = 35
3x - 25 = 3(20) - 25 = 60 - 25 = 35
y = 180 - (35+35)
y = 180 - 70
y = 110
This question is incomplete, please provide more information!
___________________________________________________________
Answer:
When converting a fraction to a decimal, the numerator is the <u>dividend.</u>
<u>___________________________________________________________</u>
49/9 because if you simplify it, it would be 7/3 which is equal to the original ratio.