Respuesta :

Answer:

Step-by-step explanation:

Your first job is to get TU = UV

US = US                       Reflexive property

VS = ST                        The lengths of both are 45

TV is a straight line  with 2 right angles. If a straight line has 1 triangle on it then it has two

ΔTSU = ΔVSU                SAS

VU = UT                         Corresponding parts of congruent triangles are =

5y = y + 48                      Subtract y from both sides

5y-y = 48                         Combine

4y = 48                             Divide by 4

4y/y = 48/4                      

Answer: y = 12