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Out of 320 racers who started the marathon, 290 completed the race, 18 gave up, and 12 were disqualified. What percentage did not complete the marathon?

Respuesta :

320 racers started the marathon.

290 completed the race

18 gave up

12 were disqualified.

Therefore:

320 - 290= 30 didn't complete the marathon

If 320 -100%

then 30- x

[tex]\begin{gathered} x=\frac{\lparen30\rparen\lparen100\rparen}{320} \\ \\ x=\text{ }\frac{3000}{320} \\ \\ x=\text{ 9,375\%} \end{gathered}[/tex]

Therefore, 9,375% of the racers didn't complete the marathon.

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