11. a three-person relay race consists of ten times

Ответ:

madisontrosclair2

12.03.2022

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 = $3\frac{1}{6} =\frac{19}{6}$

Brianna runs two and two-thirds times = $2\frac{2}{3} =\frac{8}{3}$

relay race consists of ten times around a football field

Tomiko + Brianna + third person = 10

Let the third person is x

$\frac{19}{6} + \frac{8}{3} +x = 10$

Take common denominator LCD, that is 6

Multiply the whole equation by 6

19 + 16 + 6x = 60

35 +6x = 60

6x = 25

$x=\frac{25}{6} = 4\frac{1}{6}$

The third person have to run $4\frac{1}{6}$ times to finish the race

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