Distance Firework B would have traveled after 0.25 seconds: 240 x 0.25 = 60 feet
Let x be the time that it will explode together: 60 + 240x = 340x 100x = 60 x = 60 ÷ 100 x = 0.6 sec
Firework A will explode at 0.6 seconds after it is launched Firework B will explode at (0.6 + 0.25) 0.85 seconds after it is launched.
------------------------------------------------------------------------------------------------- Answer: Firework B will explode at 0.85 seconds after it is launched. -------------------------------------------------------------------------------------------------
