distance by car --- x miles
distance by copper -- 250-x miles
x/45 + (250-x)/120 = 3
each term times 360 , the LCD
8x + 3(250-x) = 1080
8x - 3x = 330
x = 66
I will let you finish it
An executive drove from home at an average speed of 45 mph to an airport where a helicopter was waiting.
The executive boarded the helicopter and flew to the corporate offices at an average speed of 120 mph. The
entire distance was 250 miles; the entire trip took three hours. Find the distance from the airport to the
corporate offices.
1 answer
3 answers