An airplane takes off 12 and a half miles south of a city and flies due north at a constant speed of 180 miles per hour what is the plane's position relative to the city after 45 minutes

So a plane takes off 12.5 miles south of a city and flies north at 180 mph

in 45 mins how far is it away from the city

| (x) | means absolute value of x

so | (12.5 - (180/1 times x-hours)) |=distance

1 hour=60 mins

45=3/4 of 60

the plane flew 3/4 hour

180 times 3/4=540/4=135 miles traveled

| (12.5-135) |=122.5 miles away from the city

1. 180*.75=135

2. 135-12.5=122.5

3. the answer 122.5 miles north of the city