The scale on a map is 1 cm = 30 km. The map distance between two towns is 3.5 cm.
What is the actual distance between the two towns?

The actual distance between the two towns is 105 km

Step-by-step explanation:

Lets use a proportion for this scenario

1/30 = 3.5/?

We see that the numerator is multiplied by 3.5, from 1 to 3.5

So we do the same to the denominator

30 x 3.5 is 105 km

So your answer is 105 km

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step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c