Answer: A. 7x + 3
Concept:
Here, we need to know how to find the perimeter of a triangle
Perimeter (triangle) = s₁ + s₂ + s₃
s₁ = side one
s₂ = side two
s₃ = side three
Solve:
<u>Given information</u>
s₁ = 3x
s₂ = 3x + 3
s₃ = x
<u>Given expression</u>
P = s₁ + s₂ + s₃
<u>Substitute values into the expression</u>
P = (3x) + (3x + 3) + (x)
<u>Combine like terms</u>
P = (3x + 3x + x) + (3)
P = (6x + x) + 3
Hope this helps!! :)
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7.83% of the racers did not complete the race.
Step-by-step explanation:
Given,
Total racers who started = 230
Racers who completed = 212
Racers who gave up = 14
Disqualified racers = 4
Therefore, those who gave up and disqualified could not complete the race.
Racers who did not complete = 14+4 = 18
Percent of racers =
Percent of racers =
Percent of racers = 7.826%
Rounding off to nearest whole number
Percent of racers = 7.83%
7.83% of the racers did not complete the race.
Keywords: percentage, addition
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