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Kazeer [188]
3 years ago
5

If m RST=65, m QST=2x, and m QSR= 3x-10, what is the value of x?

Mathematics
2 answers:
Ber [7]3 years ago
8 0
Upon drawing the triangles given, it may be observed that they share one common side, ST. Hence, m QSR is the sum of m RST and m QST. Mathematically,
                         3x - 10 = 65 + 2x
The value of x from the equation generated above is 75. Thus, the answer to the question above is 75. 
Shalnov [3]3 years ago
5 0
First, draw a quadrilateral figure QRST. Then, label angles RST, QST, and QSR. 

Given:

mRST = 65
mQST = 2x
mQSR = 3x - 10

From the figure, angle RST is the sum of angles QST and QSR. Therefore:

mRST = mQST + mQSR 

Substituting the values, the equation becomes:

65 = 2x + (3x -10)

Solve for x:

x = 15
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El perímetro de un rectángulo es:

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