Question

Convert 4250 miles to a back bearing. The magnetic variation for where you currently are is 200 Mils east:

A) 180°
B) 220°
C) 200°
D) 160°

Answer 1

To convert miles to a back bearing, subtract the given magnetic variation from 180 degrees to obtain the forward bearing. Then, add 180 degrees to the forward bearing to obtain the back bearing.

Step-by-step explanation:

To convert miles to a back bearing, we first need to understand what a back bearing is. In navigation, a back bearing is the opposite direction of a forward bearing. It is obtained by adding 180 degrees to the forward bearing. So, if the forward bearing is x degrees, the back bearing would be x+180 degrees.

In this case, we are given that the magnetic variation for the current location is 200 Mils east. To convert miles to a back bearing, we need to find the forward bearing first. Since the magnetic variation is east, we subtract it from 180 degrees to get the forward bearing. In this case, the forward bearing would be 180 - 200 = -20 degree.

Now, we add 180 degrees to the forward bearing to obtain the back bearing. So, the back bearing would be -20 + 180 = 160 degrees.