Respuesta :
ok so set up a proportion:
[tex] \frac{10mi}{50min} = \frac{x}{90min} [/tex]
now cross multiply to get
50x = 900
divide 50 on both sides
x = 900/50 = 18 mi
[tex] \frac{10mi}{50min} = \frac{x}{90min} [/tex]
now cross multiply to get
50x = 900
divide 50 on both sides
x = 900/50 = 18 mi