Give the rate in miles per hour. Round to the nearest tenth. Rachel jogs 20 feet in 3 seconds.

Mathematics

1 answer:

Tanya [424]3 years ago

6 0

Answer:

Rate of jogging is 4.6 miles per hour.

Step-by-step explanation:

Rachel jogs 20 feet in 3 seconds and we have to find the rate of jogging in miles per hour.

Since 1 feet = 0.000189394 miles

Therefore, 20 feet = 0.0037879 miles

Similarly, 1 second = $\frac{1}{3600}$ hour

Therefor, 3 seconds = $\frac{3}{3600}$

= $\frac{1}{1200}$ hours

Formula to calculate the rate = $\frac{\text{Total distance of jogging}}{\text{Time taken to cover the distance}}$

= $\frac{0.0037879}{\frac{1}{1200} }$

= 1200 × 0.0037879

= 4.545

≈ 4.6 miles per hour

Therefore, rate of jogging is 4.6 miles per hour.

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