+0  
 
0
23
4
avatar+2442 

Okay so I tried to solve it then realized I was doing it all wrong because I wasn't using the right formula. Can someone help me get the formula?

 Feb 26, 2019
 #1
avatar+17275 
+3

First one....  the arc encompassed by an inscribed angle is TWICE the angle...

   so  16x -10  =  2 * 67

Is that enough help?

 

Second one   (7x+9) * 2  =46    See that  2 again?

 Feb 26, 2019
 #2
avatar+2442 
0

Yes, thank you! I got 9 and 4

RainbowPanda  Feb 26, 2019
 #3
avatar+98091 
+2

9 is correct

 

Let's look at the second one

 

(7x + 9) * 2 =  46      divide both sides by 2

 

7x + 9 =  23           subtract 9 from both sides

 

7x = 14

 

x = 2

 

 

cool cool cool

 Feb 26, 2019
 #4
avatar+2442 
+1

Ohhh okay, thank you!

RainbowPanda  Feb 26, 2019

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