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3 years ago

12

a team of 4 people participate in a 400-yard relay race each team member runs the same distance the team completes the race in 5

3.2 seconds what is the average running time for each person

1 answer:

Korvikt [17]3 years ago

6 0

13.3s you take 53.2 and divide it by the total number of people making it an average of 13.3 per 100m

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$\therefore m\angle YAZ + m\angle XAY = 180°\\\therefore (5w+4)°+(11w)°= 180°\\\therefore (16w+4)° = 180°\\\therefore 16w+4 = 180\\\therefore 16w = 180 - 4\\\therefore 16w = 176\\\therefore w = \frac{176}{16}\\\therefore w =11\\ \therefore m\angle YAZ = (5w+4)°\\\therefore m\angle YAZ = (5\times 11+4)°\\\therefore m\angle YAZ = (55+4)°\\\therefore m\angle YAZ = 59°\\\because \overset{\frown}{YZ) = m\angle YAZ\\\therefore \overset{\frown}{YZ) = 59°\\$

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