SOLUTION: If RS = 11x, ST = 12x − 7, and RT = 16, what is ST?

Algebra ->  Length-and-distance -> SOLUTION: If RS = 11x, ST = 12x − 7, and RT = 16, what is ST?      Log On


   

Question 1206955: If RS = 11x, ST = 12x − 7, and RT = 16, what is ST?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
If
RS+=+11x,
ST+=+12x+%E2%88%92+7
RT+=+16
what is ST?

R_____11x______S_____12x-7_________T
|<--------------------------16---------------------->|

RS%2BST=RT
11x%2B12x-7=16
23x=16%2B7
23x=23
x=1

then ST=12%2A1-7=5
and RS=11%2A1=11