The circumference (perimeter) of the tire is 2 x π x r (radius= half of the diameter):
So one complete rotation is equivalent to the perimeter that is 2 x 13 x 3.1459
= 81.68 inches & if he competed 10 rotation that means he run for 10 x 81.68 ===> 816.8 In
Answer:
Option 3
tan 30 = 60/x
Because tan x = perpendicular/base
tan 30 = 60/x
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Let the number of girls be g and the number of boys be b.
b = 3g
Class average = class score/class size = 17
17 = (class score) / 3g + g
68g = class score
Class score = girls score + boys score
Girls average = girls score/g
girls score = 18g
68g = 18g + boys score
boys score = 50g
Boys average = 50g/3g
= 16.7
1,000,000,000 . (one trillion)
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2/3 x 15 = 10
1/5 x 200 = 40
Your Final Answer: 40 - 10 = 30
