Respuesta :

So, doing a guess and check,

Liza's house.

From Liza's house to the Park it is 5[tex] \frac{1}{2} [/tex] miles.

From the Park to the Library it is also 5[tex] \frac{1}{2} [/tex] miles.

From the Library to Dan it is 4 miles.

From Dan it is 3 miles back to Liza's house.

So you must add all those together,

5[tex] \frac{1}{2} [/tex]+5[tex] \frac{1}{2} [/tex]+4+3

We got lucky because 5[tex] \frac{1}{2} [/tex]+5[tex] \frac{1}{2} [/tex] have common denominators.

So,

5[tex] \frac{1}{2} [/tex]
+
5[tex] \frac{1}{2} [/tex]

=11     ([tex] \frac{1}{2} [/tex]+[tex] \frac{1}{2} [/tex]=1, so 5+5+1)

So that is 11, then, 

11+4+3=18

18 miles total.

This is your route. From Liza's house to the Park, then Library, then Dan's, then back to Liza's house.

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