Question

How would I solve this

Answer 1

• 570 mph
• 610 mph

Explanation:

Let x represent the speed of the slower plane. The faster plane's speed is then x+40. The sum of speeds is ...

x + (x+40) = 1180

2x = 1140 . . . . subtract 40

x = 570 . . . . . .divide by 2

x+40 = 610 . . . . the speed of the faster plane

The two speeds are 570 mph and 610 mph.