-10 -10n+70 -15n+20
-10+90-10n-15n
80-25n
Answer:
0ppppppppppppppppppppppppppp
Step-by-step explanation:
1. Add 5 to both sides.
2. Divide both sides by 2.
3. Take the square root of both sides.
4. Subtract from both sides.
Average speed = (total distance covered) / (time to cover the distance)
total distance covered = (516 + 368) = 884 yards
time to cover the distance = (6 + 4) = 10 minutes
Average speed = (884 yards) / (10 minutes) = 88.4 yds/min (C)