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need help to figure out how to solve for x

Need Help To Figure Out How To Solve For X class=

Sagot :

Answer:

31.64°

Step-by-step explanation:

Since these angles are on a straight line, we know that these 2 angles add up to 180. So we can make an equation:

[tex]180 = (3x-9)+(2.5x+15)[/tex]

[tex]180 = 5.5x+6[/tex]

[tex]174 = 5.5x[/tex]

x= [tex]\frac{174}{5.5}[/tex]

x= 31.64°( to 2 d.p.)

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