Question

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The scale of a town map is 1 inch to 3 miles. On the map, a lake and the downtown are 4 inches apart. What is the actual distance between the lake and the downtown?

3/4 mile
1/3 mile
7 miles
12 miles

Answer 1

Explanation:

The answer is 12 miles, if every inch is 3 miles on the map then 3x4=12.

Answer 2

12 miles

Explanation:

In order to solve the problem you only have to use the scale of the map, we know that the ratio is 1 inch to 3 miles, so if one inch in the map represent 3 miles on real scale, now we just do a rule of three like this:

`(1 inch)/(4 miles)=(3 inches)/(x)`

So now that we have our function we can clear the x to solve the problem:

`x=(3x4)/(1)`

`x=(12)/(1)`

`x=12 miles.`

By doing this we now know that there are 12 miles from downtown to the lake.