11. a three-person relay race consists of ten times around a football field. if tomiko runs three and one-sixth times and brianna runs two and two-thirds times around the field, how many times around the field does the third person have to run to finish the race?

If Tomiko runs three and one-sixth times and Brianna runs two and two-thirds times around the field

Tomiko runs three and one-sixth times =

Brianna runs two and two-thirds times =

relay race consists of ten times around a football field

Tomiko  + Brianna + third person = 10

Let the third person is x

Take common denominator LCD, that is 6

Multiply the whole equation by 6

19 + 16 + 6x = 60

35 +6x = 60

6x = 25

The third person have to run times to finish the race

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