Distance=speed*time
distance traveled by plane A after 40 minutes:
distance=570×40/60=380 miles
Distance traveled by B after 40 minutes
distance=20/60×585=195 miles
Thus the distance between them will be given using cosine law:
c^2=a^2+b^2-2ab Cos C
thus we shall have:
c^2=380^2+195^2-2*380*195*cos22
c^2=45016.35275
c=212.171 miles
Thus the distance between them after 40 minutes is 212.171 miles
Set up a ratio:
24 / 36 = x /12
cross multiply:
24 * 12 = 36 * x
288 = 36x
divide both sides by 36
x = 288 / 36
x = 8
answer is A) 8
Answer:
Step-by-step explanation:
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