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Arada [10]
2 years ago
5

What is x in this problem

Mathematics
2 answers:
o-na [289]2 years ago
6 0

Answer:

total \: angle \: for \: a \: triangle = 180 \\ then \:  \\ 3x + 11 + 9x - 16 + 7x - 5 = 180 \\ 19x - 10 = 180 \\ 19x = 180 + 10 \\ 19x = 190 \\ x =  \frac{190}{19}  = 10 \\ thank \: yo

Charra [1.4K]2 years ago
3 0

Answer:

x=10

Step-by-step explanation:

We know that the sum of all these angles is 180°, so, we solve for x using this information:

(9x-16)+(3x+11)+(7x-5)=180\\19x-10=180\\19x=190\\x=10

We can now use x to find the value of each angle:

9(10)-16=\\90-16\\=74\\\\

3(10)+11\\30+11\\41

7(10)-5\\=70-5\\=65

<em>Hope this helped! Have a good day.</em>

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