Question

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Answer 1

Answer:

8) x = 3

9) x = 10

Step-by-step explanation:

8) 45° ≅ 15x, therefore, the equation would look like: $45 = 15x$

☆Let's solve it!

$\frac{45}{15} = \frac{15x}{15} \\ 3 = x$

9) 12x - 10 is supplementary to 8x - 10. So the equation would be: $12 x- 10 + 8x - 10 = 180$

☆Let's solve it!

$12x - 10 + 8x - 10 = 180 \\ 20x - 20 = 180 \\ \frac{ \: \: \: \: \: \: \: \: \: \: + 20 = + 20}{ \frac{20x}{20} = \frac{200}{20} } \\ x = 10$

Answer 2

8) 45/15
3

x = 3

hope this helped