Answer:
90 yards in 15 minutes =6 yds/min
90 yards in 9 minutes =10 yds/min
x = current rate
r = rowing rate
r + x = 10
r - x = 6 Adding both equations
2 r = 16
rowing rate = 8 yds/min
x = 2 yds/min (current rate)
Step-by-step explanation:
Step-by-step explanation:
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Can't really see it, can you show it to me more?
Answer:
D) 30°
Step-by-step explanation:
By exterior angle theorem:
? = 70° - 40°
? = 30°