Convert the map scale to a unit rate. How many inches represent one mile? Show your work. Interpret the meaning of the unit rate.

Question

3
10
in
.
=
7
8
mi
.

Answer 1

(3/10 in)/(7/8 mi) * (1mi)/(12*5280in) = (3/10 in)/63360in = 1:211200
or,
(3/10) / (7/8) = 3/10 * 8/7 = 24/70
so 1in = 12/35 mi

Answer 2

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Answer 3

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