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matrenka [14]
3 years ago
9

More help plsssssssss

Mathematics
2 answers:
icang [17]3 years ago
5 0

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

san4es73 [151]3 years ago
4 0
8) 45/15
3

x = 3

hope this helped
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