Answer:
it is 80°
cause it is coming from the same cord AB
O and C will be same
I hope this helps you
8n=7n+1/2
2.8n=7n+1
16n-7n =1
9n=1
n=1/9
Answer:
20 miles
Step-by-step explanation:
d miles × (1 h)/(10 miles) = d/10 hours
d miles × (1 h)/(40 miles) = d/40 hours
d/40 = d/10 - 3/2
d = 4d - 60
d = 20 miles
