Question

Convert the map scale to a unit rate. How many inches represent one mile? Show your work. Interpret the meaning of the unit rate. 3/10in.=7/8mi.

Answer 1

3/10 in : 7/8 mi = 3/10 in: 4620 in = 1:15400
divide both sides by 7/8
3/10 * 8/7 = 12/35 in = 1 mi

Answer 2

thank you, oobleck

Answer 3

can you explain, im confused

Answer 4

to get the unit rate, you want to end up with 1:n for some value of n.
so, for example,
3 pt : 4 gal = 3pt : 8*4 pt = 3:32
Now divide by 3 to get 1 : 32/3
You can always multiply or divide both sides of a ratio to get the unit (1) on one side. ratios are just fractions.

Answer 5

ok, thx

Answer 6

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