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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

12 miles

Step-by-step 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:

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

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

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: