Respuesta :

dannielle

Answer:

6 weeks

S/17=T/9=k

S=17k

T=9k, k=T/9

S=13+3.5*w

T=3*w

13+3.5w=17*3w/9

13+3.5w=51w/9

*9                 *9

117+31.5w=51w

-31.5w          -31.5w

117=19.5w

w=117/19.5

w=6

Step-by-step explanation: