3b) What is the length of segment ST?
3a) R, S, and T are collinear. S is between R and T.
If RS = 3x + 7, ST = 4x – 3, and RT = 5x + 12,
then find ST
Question
Question
3b) What is the length of segment ST?
3a) R, S, and T are collinear. S is between R and T.
If RS = 3x + 7, ST = 4x – 3, and RT = 5x + 12,
then find ST
Answer:
ST=13
Step-by-step explanation:
3x + 7 +4x – 3= 5x + 12
7x+4=5x+12
2x+4=12
2x=8
x=4
plug 4 into x for ST