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3 years ago

Help find x. I believe it’s 13

Mathematics

1 answer:

aksik [14]3 years ago

4 0

Answer:

m∠RST = 155°

m∠RSU = 102°

Step-by-step explanation:

m∠RST = m∠RSU + m∠UST

12x - 1 = 9x - 15 + 53

12x - 9x = 1- 15 + 53

3x = 39

x = 39/3

x = 13°

m∠RST = (12x -1)° = (12 * 13 - 1)° = (156 - 1 )° = 155°

m∠RSU = (9x -15)° = (9 * 13 - 15)° = ( 117 - 15)° = 102°

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