staceyann39
contestada

Brian and his friends went to drive to the beach the beach is 80 miles away Brian drove at an average rate of 60 miles an hour how long did it take Brian and his friends to arrive at the beach

Respuesta :

calculista

Answer:

80 minutes or 1 hour 20 min

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

s -----> the speed in miles per hour

d ----> the distance in miles

t ----> he time in hours

so

[tex]s=\frac{d}{t}[/tex]

solve for t

[tex]t=\frac{d}{s}[/tex]

we have

[tex]s=60\ mi/h[/tex]

[tex]d=80\ mi[/tex]

substitute and solve for t

[tex]t=\frac{80}{60}[/tex]

[tex]t=\frac{4}{3}\ h[/tex]

Convert to minutes

[tex]t=\frac{4}{3}(60)=80\ min[/tex]

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