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A runner is 7/8 mile from the finish line. If she can travel 3/8 mile per minute, how long will it take her to finish the race?

Respuesta :

Answer:

7/3 minutes

Step-by-step explanation:

The speed if the runner is given by:

[tex]speed = \frac{distance}{time} [/tex]

We have that: speed =3/8 miles per minute and distance =7/8 miles

We substitute into the formula to get:

[tex] \frac{3}{8} = \frac{ \frac{7}{8} }{time} [/tex]

[tex]time = \frac{ \frac{7}{8} }{ \frac{3}{8} } [/tex]

[tex]time = \frac{7}{8} \times \frac{8}{3} [/tex]

This simplifies to

[tex] \frac{7}{3} [/tex]

Therefore it will take 7/3 miniutes to finish the race.