Answer:
8) x = 3
9) x = 10
Step-by-step explanation:
8) 45° ≅ 15x, therefore, the equation would look like: [tex]45 = 15x[/tex]
☆Let's solve it!
[tex] \frac{45}{15} = \frac{15x}{15} \\ 3 = x[/tex]
9) 12x - 10 is supplementary to 8x - 10. So the equation would be: [tex]12 x- 10 + 8x - 10 = 180[/tex]
☆Let's solve it!
[tex]12x - 10 + 8x - 10 = 180 \\ 20x - 20 = 180 \\ \frac{ \: \: \: \: \: \: \: \: \: \: + 20 = + 20}{ \frac{20x}{20} = \frac{200}{20} } \\ x = 10[/tex]
