3 years ago

Bryan earns 9$ for each hour of yard work how many hours in all will it take Bryan to earn 27$

1 answer:

7 0

Answer:

3 hours

Step-by-step explanation:

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Black_prince [1.1K]

Answer: The radius of the track = 0.64 mi

Step-by-step explanation:

Fr circular track , Total distance covered around it = (Number of laps) x (Circumference)

As per given,

32 mi = 8 x (Circumference)

Circumference = $\dfrac{32\ mi}{8}=4\ mi$

Also, Circumference = $2\pi r$ , where r= radius so,

$2\pi r=4\ mi\\\\\Rightarrow\ r=\dfrac{4}{2\pi}\\\\\Rightarrow\ r=\dfrac{2}{\pi}$

Put $\pi= 3.14$

$r=\dfrac{2}{3.14}\approx0.64\ mi$

Hence, the radius of the track = 0.64 mi

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